93661388 has 12 divisors (see below), whose sum is σ = 167000400. Its totient is φ = 45946992.

The previous prime is 93661369. The next prime is 93661391. The reversal of 93661388 is 88316639.

It is a hoax number, since the sum of its digits (44) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 220688 + ... + 221111.

It is an arithmetic number, because the mean of its divisors is an integer number (13916700).

Almost surely, 2^93661388 is an apocalyptic number.

It is an amenable number.

93661388 is a deficient number, since it is larger than the sum of its proper divisors (73339012).

93661388 is a wasteful number, since it uses less digits than its factorization.

93661388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 441856 (or 441854 counting only the distinct ones).

The product of its digits is 186624, while the sum is 44.

The square root of 93661388 is about 9677.8813797236. The cubic root of 93661388 is about 454.1369753654.

It can be divided in two parts, 93661 and 388, that added together give a palindrome (94049).

The spelling of 93661388 in words is "ninety-three million, six hundred sixty-one thousand, three hundred eighty-eight".