90505964 has 12 divisors (see below), whose sum is σ = 158801664. Its totient is φ = 45134064.

The previous prime is 90505963. The next prime is 90505979. The reversal of 90505964 is 46950509.

It is not an unprimeable number, because it can be changed into a prime (90505963) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28007 + ... + 31070.

It is an arithmetic number, because the mean of its divisors is an integer number (13233472).

Almost surely, 2^90505964 is an apocalyptic number.

It is an amenable number.

90505964 is a deficient number, since it is larger than the sum of its proper divisors (68295700).

90505964 is a wasteful number, since it uses less digits than its factorization.

90505964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59464 (or 59462 counting only the distinct ones).

The product of its (nonzero) digits is 48600, while the sum is 38.

The square root of 90505964 is about 9513.4622509368. The cubic root of 90505964 is about 448.9786945312.

The spelling of 90505964 in words is "ninety million, five hundred five thousand, nine hundred sixty-four".