93986431 has 16 divisors (see below), whose sum is σ = 117895680. Its totient is φ = 72787680.

The previous prime is 93986429. The next prime is 93986443. The reversal of 93986431 is 13468939.

It is not a de Polignac number, because 93986431 - 2¹ = 93986429 is a prime.

It is a super-2 number, since 2×93986431² = 17666898424235522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (93986471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9205 + ... + 16513.

It is an arithmetic number, because the mean of its divisors is an integer number (7368480).

Almost surely, 2^93986431 is an apocalyptic number.

93986431 is a deficient number, since it is larger than the sum of its proper divisors (23909249).

93986431 is a wasteful number, since it uses less digits than its factorization.

93986431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7494.

The product of its digits is 139968, while the sum is 43.

The square root of 93986431 is about 9694.6599218333. The cubic root of 93986431 is about 454.6617153047.

The spelling of 93986431 in words is "ninety-three million, nine hundred eighty-six thousand, four hundred thirty-one".