90823100 has 36 divisors (see below), whose sum is σ = 197513400. Its totient is φ = 36250560.

The previous prime is 90823063. The next prime is 90823121. The reversal of 90823100 is 132809.

It is a super-2 number, since 2×90823100² = 16497670987220000, 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 11 ways as a sum of consecutive naturals, for example, 73286 + ... + 74514.

Almost surely, 2^90823100 is an apocalyptic number.

It is an amenable number.

90823100 is an abundant number, since it is smaller than the sum of its proper divisors (106690300).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

90823100 is a wasteful number, since it uses less digits than its factorization.

90823100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1982 (or 1975 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 90823100 is about 9530.1154242748. The cubic root of 90823100 is about 449.5024954462.

Adding to 90823100 its reverse (132809), we get a palindrome (90955909).

The spelling of 90823100 in words is "ninety million, eight hundred twenty-three thousand, one hundred".