93090861 has 48 divisors (see below), whose sum is σ = 154851840. Its totient is φ = 53498880.

The previous prime is 93090857. The next prime is 93090863. The reversal of 93090861 is 16809039.

It is not a de Polignac number, because 93090861 - 2² = 93090857 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (93090863) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 89601 + ... + 90633.

It is an arithmetic number, because the mean of its divisors is an integer number (3226080).

Almost surely, 2^93090861 is an apocalyptic number.

It is an amenable number.

93090861 is a deficient number, since it is larger than the sum of its proper divisors (61760979).

93090861 is a wasteful number, since it uses less digits than its factorization.

93090861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1106 (or 1103 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 36.

The square root of 93090861 is about 9648.3605343084. The cubic root of 93090861 is about 453.2129899106.

The spelling of 93090861 in words is "ninety-three million, ninety thousand, eight hundred sixty-one".