90262657 has 8 divisors (see below), whose sum is σ = 92145600. Its totient is φ = 88386480.

The previous prime is 90262637. The next prime is 90262661. The reversal of 90262657 is 75626209.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-90262657 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90262637) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32094 + ... + 34792.

It is an arithmetic number, because the mean of its divisors is an integer number (11518200).

Almost surely, 2^90262657 is an apocalyptic number.

It is an amenable number.

90262657 is a deficient number, since it is larger than the sum of its proper divisors (1882943).

90262657 is a wasteful number, since it uses less digits than its factorization.

90262657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3383.

The product of its (nonzero) digits is 45360, while the sum is 37.

The square root of 90262657 is about 9500.6661345403. Note that the first 3 decimals coincide. The cubic root of 90262657 is about 448.5760039591.

The spelling of 90262657 in words is "ninety million, two hundred sixty-two thousand, six hundred fifty-seven".