90841625 has 64 divisors (see below), whose sum is σ = 142331904. Its totient is φ = 56448000.

The previous prime is 90841579. The next prime is 90841631. The reversal of 90841625 is 52614809.

It is not a de Polignac number, because 90841625 - 2⁶ = 90841561 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 461027 + ... + 461223.

It is an arithmetic number, because the mean of its divisors is an integer number (2223936).

Almost surely, 2^90841625 is an apocalyptic number.

It is an amenable number.

90841625 is a deficient number, since it is larger than the sum of its proper divisors (51490279).

90841625 is a wasteful number, since it uses less digits than its factorization.

90841625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267 (or 257 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 35.

The square root of 90841625 is about 9531.0872936932. The cubic root of 90841625 is about 449.5330547336.

The spelling of 90841625 in words is "ninety million, eight hundred forty-one thousand, six hundred twenty-five".