93696991 has 4 divisors (see below), whose sum is σ = 95690592. Its totient is φ = 91703392.

The previous prime is 93696983. The next prime is 93697007. The reversal of 93696991 is 19969639.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 93696991 - 2³ = 93696983 is a prime.

It is a super-2 number, since 2×93696991² = 17558252244908162, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (93696901) 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, 996730 + ... + 996823.

It is an arithmetic number, because the mean of its divisors is an integer number (23922648).

Almost surely, 2^93696991 is an apocalyptic number.

93696991 is a deficient number, since it is larger than the sum of its proper divisors (1993601).

93696991 is a wasteful number, since it uses less digits than its factorization.

93696991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1993600.

The product of its digits is 708588, while the sum is 52.

The square root of 93696991 is about 9679.7206054720. The cubic root of 93696991 is about 454.1945109583.

The spelling of 93696991 in words is "ninety-three million, six hundred ninety-six thousand, nine hundred ninety-one".