90631827 has 36 divisors (see below), whose sum is σ = 154673064. Its totient is φ = 50693760.

The previous prime is 90631823. The next prime is 90631841. The reversal of 90631827 is 72813609.

It is not a de Polignac number, because 90631827 - 2² = 90631823 is a prime.

It is a super-3 number, since 3×90631827³ (a number of 25 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 90631791 and 90631800.

It is not an unprimeable number, because it can be changed into a prime (90631823) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 14023 + ... + 19439.

It is an arithmetic number, because the mean of its divisors is an integer number (4296474).

Almost surely, 2^90631827 is an apocalyptic number.

90631827 is a deficient number, since it is larger than the sum of its proper divisors (64041237).

90631827 is a wasteful number, since it uses less digits than its factorization.

90631827 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5460 (or 5444 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 90631827 is about 9520.0749471840. The cubic root of 90631827 is about 449.1867236594.

The spelling of 90631827 in words is "ninety million, six hundred thirty-one thousand, eight hundred twenty-seven".