93909057 has 16 divisors (see below), whose sum is σ = 139174848. Its totient is φ = 55839680.

The previous prime is 93909043. The next prime is 93909083. The reversal of 93909057 is 75090939.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 93909057 - 2¹² = 93904961 is a prime.

It is not an unprimeable number, because it can be changed into a prime (93909097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25098 + ... + 28595.

It is an arithmetic number, because the mean of its divisors is an integer number (8698428).

Almost surely, 2^93909057 is an apocalyptic number.

It is an amenable number.

93909057 is a deficient number, since it is larger than the sum of its proper divisors (45265791).

93909057 is a wasteful number, since it uses less digits than its factorization.

93909057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53760.

The product of its (nonzero) digits is 76545, while the sum is 42.

The square root of 93909057 is about 9690.6685527883. The cubic root of 93909057 is about 454.5369148299.

The spelling of 93909057 in words is "ninety-three million, nine hundred nine thousand, fifty-seven".