90763631 has 16 divisors (see below), whose sum is σ = 107366400. Its totient is φ = 76681080.

The previous prime is 90763619. The next prime is 90763633. The reversal of 90763631 is 13636709.

It is a de Polignac number, because none of the positive numbers 2^k-90763631 is a prime.

It is a super-2 number, since 2×90763631² = 16476073424608322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 90763591 and 90763600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90763633) 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, 22490 + ... + 26216.

It is an arithmetic number, because the mean of its divisors is an integer number (6710400).

Almost surely, 2^90763631 is an apocalyptic number.

90763631 is a deficient number, since it is larger than the sum of its proper divisors (16602769).

90763631 is an equidigital number, since it uses as much as digits as its factorization.

90763631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3819 (or 3805 counting only the distinct ones).

The product of its (nonzero) digits is 20412, while the sum is 35.

The square root of 90763631 is about 9526.9948567216. The cubic root of 90763631 is about 449.4043658572.

The spelling of 90763631 in words is "ninety million, seven hundred sixty-three thousand, six hundred thirty-one".