90987308 has 12 divisors (see below), whose sum is σ = 159388320. Its totient is φ = 45447792.

The previous prime is 90987289. The next prime is 90987331. The reversal of 90987308 is 80378909.

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, 6791 + ... + 15102.

It is an arithmetic number, because the mean of its divisors is an integer number (13282360).

Almost surely, 2^90987308 is an apocalyptic number.

It is an amenable number.

90987308 is a deficient number, since it is larger than the sum of its proper divisors (68401012).

90987308 is a wasteful number, since it uses less digits than its factorization.

90987308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22936 (or 22934 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 44.

The square root of 90987308 is about 9538.7267494147. The cubic root of 90987308 is about 449.7732322466.

The spelling of 90987308 in words is "ninety million, nine hundred eighty-seven thousand, three hundred eight".