90039087 has 16 divisors (see below), whose sum is σ = 133754880. Its totient is φ = 59862456.

The previous prime is 90039083. The next prime is 90039091. The reversal of 90039087 is 78093009.

It is an interprime number because it is at equal distance from previous prime (90039083) and next prime (90039091).

It is not a de Polignac number, because 90039087 - 2² = 90039083 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90039083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5988 + ... + 14694.

It is an arithmetic number, because the mean of its divisors is an integer number (8359680).

Almost surely, 2^90039087 is an apocalyptic number.

90039087 is a deficient number, since it is larger than the sum of its proper divisors (43715793).

90039087 is a wasteful number, since it uses less digits than its factorization.

90039087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9099 (or 9093 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 36.

The square root of 90039087 is about 9488.8928226638. The cubic root of 90039087 is about 448.2053410688.

The spelling of 90039087 in words is "ninety million, thirty-nine thousand, eighty-seven".