90291746 has 24 divisors (see below), whose sum is σ = 140264460. Its totient is φ = 43583232.

The previous prime is 90291739. The next prime is 90291779. The reversal of 90291746 is 64719209.

It can be written as a sum of positive squares in 2 ways, for example, as 70140625 + 20151121 = 8375^2 + 4489^2 .

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 11 ways as a sum of consecutive naturals, for example, 798986 + ... + 799098.

Almost surely, 2^90291746 is an apocalyptic number.

90291746 is a deficient number, since it is larger than the sum of its proper divisors (49972714).

90291746 is a wasteful number, since it uses less digits than its factorization.

90291746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 338 (or 271 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 38.

The square root of 90291746 is about 9502.1969038744. The cubic root of 90291746 is about 448.6241864018.

The spelling of 90291746 in words is "ninety million, two hundred ninety-one thousand, seven hundred forty-six".