90262645 has 16 divisors (see below), whose sum is σ = 122238720. Its totient is φ = 63380800.

The previous prime is 90262637. The next prime is 90262661. The reversal of 90262645 is 54626209.

It is not a de Polignac number, because 90262645 - 2³ = 90262637 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 90262645.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26701 + ... + 29890.

It is an arithmetic number, because the mean of its divisors is an integer number (7639920).

Almost surely, 2^90262645 is an apocalyptic number.

It is an amenable number.

90262645 is a deficient number, since it is larger than the sum of its proper divisors (31976075).

90262645 is a wasteful number, since it uses less digits than its factorization.

90262645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56636.

The product of its (nonzero) digits is 25920, while the sum is 34.

The square root of 90262645 is about 9500.6655030056. The cubic root of 90262645 is about 448.5759840804.

The spelling of 90262645 in words is "ninety million, two hundred sixty-two thousand, six hundred forty-five".