34074721 has 4 divisors (see below), whose sum is σ = 34541572. Its totient is φ = 33607872.

The previous prime is 34074713. The next prime is 34074751. The reversal of 34074721 is 12747043.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12747043 = 19 ⋅670897.

It can be written as a sum of positive squares in 2 ways, for example, as 26122321 + 7952400 = 5111^2 + 2820^2 .

It is a cyclic number.

It is not a de Polignac number, because 34074721 - 2³ = 34074713 is a prime.

It is a super-2 number, since 2×34074721² = 2322173222455682, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 34074721.

It is not an unprimeable number, because it can be changed into a prime (34074701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 233316 + ... + 233461.

It is an arithmetic number, because the mean of its divisors is an integer number (8635393).

Almost surely, 2^34074721 is an apocalyptic number.

It is an amenable number.

34074721 is a deficient number, since it is larger than the sum of its proper divisors (466851).

34074721 is an equidigital number, since it uses as much as digits as its factorization.

34074721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 466850.

The product of its (nonzero) digits is 4704, while the sum is 28.

The square root of 34074721 is about 5837.3556513202. The cubic root of 34074721 is about 324.1983271094.

It can be divided in two parts, 3407 and 4721, that added together give a triangular number (8128 = T₁₂₇).

The spelling of 34074721 in words is "thirty-four million, seventy-four thousand, seven hundred twenty-one".