34824721 has 8 divisors (see below), whose sum is σ = 37289160. Its totient is φ = 32406528.

The previous prime is 34824707. The next prime is 34824743. The reversal of 34824721 is 12742843.

It can be written as a sum of positive squares in 4 ways, for example, as 5013121 + 29811600 = 2239^2 + 5460^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 34824721 - 2¹⁷ = 34693649 is a prime.

It is a super-2 number, since 2×34824721² = 2425522385455682, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (34824761) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9996 + ... + 13021.

It is an arithmetic number, because the mean of its divisors is an integer number (4661145).

Almost surely, 2^34824721 is an apocalyptic number.

It is an amenable number.

34824721 is a deficient number, since it is larger than the sum of its proper divisors (2464439).

34824721 is a wasteful number, since it uses less digits than its factorization.

34824721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23123.

The product of its digits is 10752, while the sum is 31.

The square root of 34824721 is about 5901.2474105057. The cubic root of 34824721 is about 326.5596700578.

The spelling of 34824721 in words is "thirty-four million, eight hundred twenty-four thousand, seven hundred twenty-one".