90925289 has 16 divisors (see below), whose sum is σ = 112492800. Its totient is φ = 71565120.

The previous prime is 90925273. The next prime is 90925291. The reversal of 90925289 is 98252909.

It is a cyclic number.

It is not a de Polignac number, because 90925289 - 2⁴ = 90925273 is a prime.

It is not an unprimeable number, because it can be changed into a prime (90925229) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15599 + ... + 20619.

It is an arithmetic number, because the mean of its divisors is an integer number (7030800).

Almost surely, 2^90925289 is an apocalyptic number.

It is an amenable number.

90925289 is a deficient number, since it is larger than the sum of its proper divisors (21567511).

90925289 is a wasteful number, since it uses less digits than its factorization.

90925289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5240.

The product of its (nonzero) digits is 116640, while the sum is 44.

The square root of 90925289 is about 9535.4752896749. The cubic root of 90925289 is about 449.6710171613.

The spelling of 90925289 in words is "ninety million, nine hundred twenty-five thousand, two hundred eighty-nine".