90963831 has 8 divisors (see below), whose sum is σ = 138611584. Its totient is φ = 51979320.

The previous prime is 90963809. The next prime is 90963857. The reversal of 90963831 is 13836909.

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

It is not a de Polignac number, because 90963831 - 2⁵ = 90963799 is a prime.

It is a super-2 number, since 2×90963831² = 16548837100393122, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 90963831.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90963881) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2165785 + ... + 2165826.

It is an arithmetic number, because the mean of its divisors is an integer number (17326448).

Almost surely, 2^90963831 is an apocalyptic number.

90963831 is a deficient number, since it is larger than the sum of its proper divisors (47647753).

90963831 is a wasteful number, since it uses less digits than its factorization.

90963831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4331621.

The product of its (nonzero) digits is 34992, while the sum is 39.

The square root of 90963831 is about 9537.4960550451. The cubic root of 90963831 is about 449.7345446731.

The spelling of 90963831 in words is "ninety million, nine hundred sixty-three thousand, eight hundred thirty-one".