90368187 has 24 divisors (see below), whose sum is σ = 149117184. Its totient is φ = 47664864.

The previous prime is 90368177. The next prime is 90368189. The reversal of 90368187 is 78186309.

It is not a de Polignac number, because 90368187 - 2¹² = 90364091 is a prime.

It is not an unprimeable number, because it can be changed into a prime (90368189) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9183 + ... + 16280.

It is an arithmetic number, because the mean of its divisors is an integer number (6213216).

Almost surely, 2^90368187 is an apocalyptic number.

90368187 is a deficient number, since it is larger than the sum of its proper divisors (58748997).

90368187 is a wasteful number, since it uses less digits than its factorization.

90368187 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25499 (or 25486 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 42.

The square root of 90368187 is about 9506.2183332806. The cubic root of 90368187 is about 448.7507524500.

The spelling of 90368187 in words is "ninety million, three hundred sixty-eight thousand, one hundred eighty-seven".