90290607 has 32 divisors (see below), whose sum is σ = 134985984. Its totient is φ = 53222400.

The previous prime is 90290593. The next prime is 90290623. The reversal of 90290607 is 70609209.

It is not a de Polignac number, because 90290607 - 2⁸ = 90290351 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90290677) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 214257 + ... + 214677.

It is an arithmetic number, because the mean of its divisors is an integer number (4218312).

Almost surely, 2^90290607 is an apocalyptic number.

90290607 is a gapful number since it is divisible by the number (97) formed by its first and last digit.

90290607 is a deficient number, since it is larger than the sum of its proper divisors (44695377).

90290607 is a wasteful number, since it uses less digits than its factorization.

90290607 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 599.

The product of its (nonzero) digits is 6804, while the sum is 33.

The square root of 90290607 is about 9502.1369701768. The cubic root of 90290607 is about 448.6222999795.

The spelling of 90290607 in words is "ninety million, two hundred ninety thousand, six hundred seven".