90574775 has 6 divisors (see below), whose sum is σ = 112312752. Its totient is φ = 72459800.

The previous prime is 90574769. The next prime is 90574787. The reversal of 90574775 is 57747509.

It is not a de Polignac number, because 90574775 - 2⁶ = 90574711 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 5 ways as a sum of consecutive naturals, for example, 1811471 + ... + 1811520.

It is an arithmetic number, because the mean of its divisors is an integer number (18718792).

Almost surely, 2^90574775 is an apocalyptic number.

90574775 is a deficient number, since it is larger than the sum of its proper divisors (21737977).

90574775 is a wasteful number, since it uses less digits than its factorization.

90574775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3623001 (or 3622996 counting only the distinct ones).

The product of its (nonzero) digits is 308700, while the sum is 44.

The square root of 90574775 is about 9517.0780705004. The cubic root of 90574775 is about 449.0924507422.

The spelling of 90574775 in words is "ninety million, five hundred seventy-four thousand, seven hundred seventy-five".