90316780 has 12 divisors (see below), whose sum is σ = 189665280. Its totient is φ = 36126704.

The previous prime is 90316769. The next prime is 90316789. The reversal of 90316780 is 8761309.

It is not an unprimeable number, because it can be changed into a prime (90316789) 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, 2257900 + ... + 2257939.

It is an arithmetic number, because the mean of its divisors is an integer number (15805440).

Almost surely, 2^90316780 is an apocalyptic number.

It is an amenable number.

90316780 is an abundant number, since it is smaller than the sum of its proper divisors (99348500).

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

90316780 is a wasteful number, since it uses less digits than its factorization.

90316780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4515848 (or 4515846 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 90316780 is about 9503.5140869049. The cubic root of 90316780 is about 448.6656439384.

The spelling of 90316780 in words is "ninety million, three hundred sixteen thousand, seven hundred eighty".