90835988 has 24 divisors (see below), whose sum is σ = 161344512. Its totient is φ = 44743104.

The previous prime is 90835963. The next prime is 90836021. The reversal of 90835988 is 88953809.

It is a super-2 number, since 2×90835988² = 16502353431872288, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82256 + ... + 83352.

It is an arithmetic number, because the mean of its divisors is an integer number (6722688).

Almost surely, 2^90835988 is an apocalyptic number.

It is an amenable number.

90835988 is a deficient number, since it is larger than the sum of its proper divisors (70508524).

90835988 is a wasteful number, since it uses less digits than its factorization.

90835988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1391 (or 1389 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 50.

The square root of 90835988 is about 9530.7915725820. The cubic root of 90835988 is about 449.5237562421.

The spelling of 90835988 in words is "ninety million, eight hundred thirty-five thousand, nine hundred eighty-eight".