90911377 has 4 divisors (see below), whose sum is σ = 92626740. Its totient is φ = 89196016.

The previous prime is 90911369. The next prime is 90911441. The reversal of 90911377 is 77311909.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 52359696 + 38551681 = 7236^2 + 6209^2 .

It is a cyclic number.

It is not a de Polignac number, because 90911377 - 2³ = 90911369 is a prime.

It is a super-2 number, since 2×90911377² = 16529756936072258, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90911347) by changing a digit.

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, 857602 + ... + 857707.

It is an arithmetic number, because the mean of its divisors is an integer number (23156685).

Almost surely, 2^90911377 is an apocalyptic number.

It is an amenable number.

90911377 is a deficient number, since it is larger than the sum of its proper divisors (1715363).

90911377 is a wasteful number, since it uses less digits than its factorization.

90911377 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1715362.

The product of its (nonzero) digits is 11907, while the sum is 37.

The square root of 90911377 is about 9534.7457753209. The cubic root of 90911377 is about 449.6480820595.

The spelling of 90911377 in words is "ninety million, nine hundred eleven thousand, three hundred seventy-seven".