34080721 has 4 divisors (see below), whose sum is σ = 34173952. Its totient is φ = 33987492.

The previous prime is 34080719. The next prime is 34080727. The reversal of 34080721 is 12708043.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 12708043 = 89 ⋅142787.

It is a cyclic number.

It is not a de Polignac number, because 34080721 - 2¹ = 34080719 is a prime.

It is a super-2 number, since 2×34080721² = 2322991087759682, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (34080727) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46065 + ... + 46798.

It is an arithmetic number, because the mean of its divisors is an integer number (8543488).

Almost surely, 2^34080721 is an apocalyptic number.

It is an amenable number.

34080721 is a deficient number, since it is larger than the sum of its proper divisors (93231).

34080721 is an equidigital number, since it uses as much as digits as its factorization.

34080721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93230.

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 34080721 is about 5837.8695600364. The cubic root of 34080721 is about 324.2173546636.

Adding to 34080721 its reverse (12708043), we get a palindrome (46788764).

The spelling of 34080721 in words is "thirty-four million, eighty thousand, seven hundred twenty-one".