90538930 has 8 divisors (see below), whose sum is σ = 162970092. Its totient is φ = 36215568.

The previous prime is 90538919. The next prime is 90538949. The reversal of 90538930 is 3983509.

It can be written as a sum of positive squares in 2 ways, for example, as 88943761 + 1595169 = 9431^2 + 1263^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 90538930.

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 3 ways as a sum of consecutive naturals, for example, 4526937 + ... + 4526956.

Almost surely, 2^90538930 is an apocalyptic number.

90538930 is a deficient number, since it is larger than the sum of its proper divisors (72431162).

90538930 is a wasteful number, since it uses less digits than its factorization.

90538930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9053900.

The product of its (nonzero) digits is 29160, while the sum is 37.

The square root of 90538930 is about 9515.1946905988. The cubic root of 90538930 is about 449.0332000920.

The spelling of 90538930 in words is "ninety million, five hundred thirty-eight thousand, nine hundred thirty".