90179933 has 2 divisors, whose sum is σ = 90179934. Its totient is φ = 90179932.

The previous prime is 90179927. The next prime is 90179939. The reversal of 90179933 is 33997109.

It is a balanced prime because it is at equal distance from previous prime (90179927) and next prime (90179939).

It can be written as a sum of positive squares in only one way, i.e., 77915929 + 12264004 = 8827^2 + 3502^2 .

It is a cyclic number.

It is not a de Polignac number, because 90179933 - 2²² = 85985629 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90179939) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45089966 + 45089967.

It is an arithmetic number, because the mean of its divisors is an integer number (45089967).

Almost surely, 2^90179933 is an apocalyptic number.

It is an amenable number.

90179933 is a deficient number, since it is larger than the sum of its proper divisors (1).

90179933 is an equidigital number, since it uses as much as digits as its factorization.

90179933 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 45927, while the sum is 41.

The square root of 90179933 is about 9496.3115471219. The cubic root of 90179933 is about 448.4389249624.

The spelling of 90179933 in words is "ninety million, one hundred seventy-nine thousand, nine hundred thirty-three".