34630721 has 8 divisors (see below), whose sum is σ = 34963488. Its totient is φ = 34300000.

The previous prime is 34630703. The next prime is 34630753. The reversal of 34630721 is 12703643.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-34630721 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (34630021) 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, 70286 + ... + 70776.

It is an arithmetic number, because the mean of its divisors is an integer number (4370436).

Almost surely, 2^34630721 is an apocalyptic number.

It is an amenable number.

34630721 is a deficient number, since it is larger than the sum of its proper divisors (332767).

34630721 is a wasteful number, since it uses less digits than its factorization.

34630721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1023.

The product of its (nonzero) digits is 3024, while the sum is 26.

The square root of 34630721 is about 5884.7872518894. The cubic root of 34630721 is about 325.9521458607.

The spelling of 34630721 in words is "thirty-four million, six hundred thirty thousand, seven hundred twenty-one".