93870091 has 16 divisors (see below), whose sum is σ = 109312000. Its totient is φ = 78949728.

The previous prime is 93870083. The next prime is 93870097. The reversal of 93870091 is 19007839.

It is a cyclic number.

It is not a de Polignac number, because 93870091 - 2³ = 93870083 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 93870091.

It is not an unprimeable number, because it can be changed into a prime (93870097) 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, 109621 + ... + 110473.

It is an arithmetic number, because the mean of its divisors is an integer number (6832000).

Almost surely, 2^93870091 is an apocalyptic number.

93870091 is a deficient number, since it is larger than the sum of its proper divisors (15441909).

93870091 is a wasteful number, since it uses less digits than its factorization.

93870091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1138.

The product of its (nonzero) digits is 13608, while the sum is 37.

The square root of 93870091 is about 9688.6578533871. The cubic root of 93870091 is about 454.4740386237.

The spelling of 93870091 in words is "ninety-three million, eight hundred seventy thousand, ninety-one".