90384970 has 16 divisors (see below), whose sum is σ = 175208040. Its totient is φ = 33372864.

The previous prime is 90384953. The next prime is 90384977. The reversal of 90384970 is 7948309.

It can be written as a sum of positive squares in 4 ways, for example, as 48121969 + 42263001 = 6937^2 + 6501^2 .

It is not an unprimeable number, because it can be changed into a prime (90384977) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 347505 + ... + 347764.

Almost surely, 2^90384970 is an apocalyptic number.

90384970 is a deficient number, since it is larger than the sum of its proper divisors (84823070).

90384970 is a wasteful number, since it uses less digits than its factorization.

90384970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 695289.

The product of its (nonzero) digits is 54432, while the sum is 40.

The square root of 90384970 is about 9507.1010302826. The cubic root of 90384970 is about 448.7785310962.

The spelling of 90384970 in words is "ninety million, three hundred eighty-four thousand, nine hundred seventy".