93160721 has 8 divisors (see below), whose sum is σ = 95399424. Its totient is φ = 90932800.

The previous prime is 93160699. The next prime is 93160751. The reversal of 93160721 is 12706139.

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 93160721 - 2⁶ = 93160657 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (93160751) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16376 + ... + 21318.

It is an arithmetic number, because the mean of its divisors is an integer number (11924928).

Almost surely, 2^93160721 is an apocalyptic number.

It is an amenable number.

93160721 is a deficient number, since it is larger than the sum of its proper divisors (2238703).

93160721 is a wasteful number, since it uses less digits than its factorization.

93160721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5391.

The product of its (nonzero) digits is 2268, while the sum is 29.

The square root of 93160721 is about 9651.9801595320. The cubic root of 93160721 is about 453.3263327326.

The spelling of 93160721 in words is "ninety-three million, one hundred sixty thousand, seven hundred twenty-one".