34506721 has 8 divisors (see below), whose sum is σ = 34827840. Its totient is φ = 34187568.

The previous prime is 34506713. The next prime is 34506733. The reversal of 34506721 is 12760543.

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 34506721 - 2³ = 34506713 is a prime.

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 34506721.

It is not an unprimeable number, because it can be changed into a prime (34506221) 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, 95940 + ... + 96298.

It is an arithmetic number, because the mean of its divisors is an integer number (4353480).

Almost surely, 2^34506721 is an apocalyptic number.

It is an amenable number.

34506721 is a deficient number, since it is larger than the sum of its proper divisors (321119).

34506721 is a wasteful number, since it uses less digits than its factorization.

34506721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 983.

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 34506721 is about 5874.2421638880. The cubic root of 34506721 is about 325.5626419568.

The spelling of 34506721 in words is "thirty-four million, five hundred six thousand, seven hundred twenty-one".