90606775 has 24 divisors (see below), whose sum is σ = 133991424. Its totient is φ = 59426400.

The previous prime is 90606767. The next prime is 90606781. The reversal of 90606775 is 57760609.

It is not a de Polignac number, because 90606775 - 2³ = 90606767 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7231 + ... + 15280.

It is an arithmetic number, because the mean of its divisors is an integer number (5582976).

Almost surely, 2^90606775 is an apocalyptic number.

90606775 is a deficient number, since it is larger than the sum of its proper divisors (43384649).

90606775 is a wasteful number, since it uses less digits than its factorization.

90606775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22551 (or 22546 counting only the distinct ones).

The product of its (nonzero) digits is 79380, while the sum is 40.

The square root of 90606775 is about 9518.7591103042. The cubic root of 90606775 is about 449.1453325235.

The spelling of 90606775 in words is "ninety million, six hundred six thousand, seven hundred seventy-five".