90823059 has 16 divisors (see below), whose sum is σ = 141635200. Its totient is φ = 57361608.

The previous prime is 90823043. The next prime is 90823063. The reversal of 90823059 is 95032809.

It is not a de Polignac number, because 90823059 - 2⁴ = 90823043 is a prime.

It is a super-2 number, since 2×90823059² = 16497656092234962, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90823039) 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, 88009 + ... + 89034.

It is an arithmetic number, because the mean of its divisors is an integer number (8852200).

Almost surely, 2^90823059 is an apocalyptic number.

90823059 is a deficient number, since it is larger than the sum of its proper divisors (50812141).

90823059 is a wasteful number, since it uses less digits than its factorization.

90823059 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177071 (or 177065 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 36.

The square root of 90823059 is about 9530.1132731988. The cubic root of 90823059 is about 449.5024278070.

The spelling of 90823059 in words is "ninety million, eight hundred twenty-three thousand, fifty-nine".