90084625 has 8 divisors (see below), whose sum is σ = 112425768. Its totient is φ = 72067600.

The previous prime is 90084611. The next prime is 90084661. The reversal of 90084625 is 52648009.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1046529 + 89038096 = 1023^2 + 9436^2 .

It is not a de Polignac number, because 90084625 - 2⁵ = 90084593 is a prime.

It is a super-2 number, since 2×90084625² = 16230479322781250, which contains 22 as substring.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

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 7 ways as a sum of consecutive naturals, for example, 360214 + ... + 360463.

It is an arithmetic number, because the mean of its divisors is an integer number (14053221).

Almost surely, 2^90084625 is an apocalyptic number.

It is an amenable number.

90084625 is a deficient number, since it is larger than the sum of its proper divisors (22341143).

90084625 is an equidigital number, since it uses as much as digits as its factorization.

90084625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 720692 (or 720682 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 90084625 is about 9491.2920616742. The cubic root of 90084625 is about 448.2808894985.

It can be divided in two parts, 90084 and 625, that added together give a palindrome (90709).

The spelling of 90084625 in words is "ninety million, eighty-four thousand, six hundred twenty-five".