93931866 has 64 divisors (see below), whose sum is σ = 244147200. Its totient is φ = 26209008.

The previous prime is 93931819. The next prime is 93931889. The reversal of 93931866 is 66813939.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13365 + ... + 19143.

It is an arithmetic number, because the mean of its divisors is an integer number (3814800).

Almost surely, 2^93931866 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 93931866, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (122073600).

93931866 is an abundant number, since it is smaller than the sum of its proper divisors (150215334).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

93931866 is a wasteful number, since it uses less digits than its factorization.

93931866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5840 (or 5834 counting only the distinct ones).

The product of its digits is 209952, while the sum is 45.

The square root of 93931866 is about 9691.8453351258. The cubic root of 93931866 is about 454.5737117536.

The spelling of 93931866 in words is "ninety-three million, nine hundred thirty-one thousand, eight hundred sixty-six".