59968721 has 4 divisors (see below), whose sum is σ = 60985200. Its totient is φ = 58952244.

The previous prime is 59968709. The next prime is 59968729. The reversal of 59968721 is 12786995.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-59968721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (59968729) 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, 508151 + ... + 508268.

It is an arithmetic number, because the mean of its divisors is an integer number (15246300).

Almost surely, 2^59968721 is an apocalyptic number.

It is an amenable number.

59968721 is a deficient number, since it is larger than the sum of its proper divisors (1016479).

59968721 is a wasteful number, since it uses less digits than its factorization.

59968721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1016478.

The product of its digits is 272160, while the sum is 47.

The square root of 59968721 is about 7743.9473784369. The cubic root of 59968721 is about 391.4187227668.

The spelling of 59968721 in words is "fifty-nine million, nine hundred sixty-eight thousand, seven hundred twenty-one".