90471056 has 20 divisors (see below), whose sum is σ = 188771772. Its totient is φ = 41755776.

The previous prime is 90471049. The next prime is 90471067. The reversal of 90471056 is 65017409.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 59290000 + 31181056 = 7700^2 + 5584^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 217271 + ... + 217686.

Almost surely, 2^90471056 is an apocalyptic number.

It is an amenable number.

90471056 is an abundant number, since it is smaller than the sum of its proper divisors (98300716).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

90471056 is a wasteful number, since it uses less digits than its factorization.

90471056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 434978 (or 434972 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 32.

The square root of 90471056 is about 9511.6274107011. The cubic root of 90471056 is about 448.9209636628.

The spelling of 90471056 in words is "ninety million, four hundred seventy-one thousand, fifty-six".