90570685 has 32 divisors (see below), whose sum is σ = 116785152. Its totient is φ = 67314240.

The previous prime is 90570673. The next prime is 90570703. The reversal of 90570685 is 58607509.

It is a happy number.

It is not a de Polignac number, because 90570685 - 2⁹ = 90570173 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 713092 + ... + 713218.

It is an arithmetic number, because the mean of its divisors is an integer number (3649536).

Almost surely, 2^90570685 is an apocalyptic number.

It is an amenable number.

90570685 is a deficient number, since it is larger than the sum of its proper divisors (26214467).

90570685 is a wasteful number, since it uses less digits than its factorization.

90570685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 313.

The product of its (nonzero) digits is 75600, while the sum is 40.

The square root of 90570685 is about 9516.8631911991. The cubic root of 90570685 is about 449.0856908918.

The spelling of 90570685 in words is "ninety million, five hundred seventy thousand, six hundred eighty-five".