90398992937 has 16 divisors (see below), whose sum is σ = 103415201280. Its totient is φ = 78260112000.

The previous prime is 90398992921. The next prime is 90398992949. The reversal of 90398992937 is 73929989309.

It is a cyclic number.

It is not a de Polignac number, because 90398992937 - 2⁴ = 90398992921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90398992997) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1917689 + ... + 1964262.

It is an arithmetic number, because the mean of its divisors is an integer number (6463450080).

Almost surely, 2^90398992937 is an apocalyptic number.

It is an amenable number.

90398992937 is a deficient number, since it is larger than the sum of its proper divisors (13016208343).

90398992937 is a wasteful number, since it uses less digits than its factorization.

90398992937 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3882064.

The product of its (nonzero) digits is 59521392, while the sum is 68.

The spelling of 90398992937 in words is "ninety billion, three hundred ninety-eight million, nine hundred ninety-two thousand, nine hundred thirty-seven".