90433856 has 14 divisors (see below), whose sum is σ = 179454810. Its totient is φ = 45216896.

The previous prime is 90433841. The next prime is 90433873. The reversal of 90433856 is 65833409.

It can be written as a sum of positive squares in only one way, i.e., 67240000 + 23193856 = 8200^2 + 4816^2 .

It is a super-2 number, since 2×90433856² = 16356564622057472, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 706451 + ... + 706578.

Almost surely, 2^90433856 is an apocalyptic number.

It is an amenable number.

90433856 is a deficient number, since it is larger than the sum of its proper divisors (89020954).

90433856 is a wasteful number, since it uses less digits than its factorization.

90433856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1413041 (or 1413031 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 38.

The square root of 90433856 is about 9509.6717083189. The cubic root of 90433856 is about 448.8594259364.

The spelling of 90433856 in words is "ninety million, four hundred thirty-three thousand, eight hundred fifty-six".