93656921 has 8 divisors (see below), whose sum is σ = 100012800. Its totient is φ = 87509520.

The previous prime is 93656911. The next prime is 93656929. The reversal of 93656921 is 12965639.

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 93656921 - 2¹⁰ = 93655897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (93656929) 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, 51191 + ... + 52988.

It is an arithmetic number, because the mean of its divisors is an integer number (12501600).

Almost surely, 2^93656921 is an apocalyptic number.

It is an amenable number.

93656921 is a deficient number, since it is larger than the sum of its proper divisors (6355879).

93656921 is a wasteful number, since it uses less digits than its factorization.

93656921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104239.

The product of its digits is 87480, while the sum is 41.

The square root of 93656921 is about 9677.6505929900. The cubic root of 93656921 is about 454.1297555204.

The spelling of 93656921 in words is "ninety-three million, six hundred fifty-six thousand, nine hundred twenty-one".