90292949 has 2 divisors, whose sum is σ = 90292950. Its totient is φ = 90292948.

The previous prime is 90292919. The next prime is 90292981. The reversal of 90292949 is 94929209.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 50665924 + 39627025 = 7118^2 + 6295^2 .

It is a cyclic number.

It is not a de Polignac number, because 90292949 - 2²⁴ = 73515733 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90292919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45146474 + 45146475.

It is an arithmetic number, because the mean of its divisors is an integer number (45146475).

Almost surely, 2^90292949 is an apocalyptic number.

It is an amenable number.

90292949 is a deficient number, since it is larger than the sum of its proper divisors (1).

90292949 is an equidigital number, since it uses as much as digits as its factorization.

90292949 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 104976, while the sum is 44.

The square root of 90292949 is about 9502.2602048144. The cubic root of 90292949 is about 448.6261788043.

The spelling of 90292949 in words is "ninety million, two hundred ninety-two thousand, nine hundred forty-nine".