92490809 has 2 divisors, whose sum is σ = 92490810. Its totient is φ = 92490808.

The previous prime is 92490799. The next prime is 92490821. The reversal of 92490809 is 90809429.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 91145209 + 1345600 = 9547^2 + 1160^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-92490809 is a prime.

It is not a weakly prime, because it can be changed into another prime (92490109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 46245404 + 46245405.

It is an arithmetic number, because the mean of its divisors is an integer number (46245405).

Almost surely, 2^92490809 is an apocalyptic number.

It is an amenable number.

92490809 is a deficient number, since it is larger than the sum of its proper divisors (1).

92490809 is an equidigital number, since it uses as much as digits as its factorization.

92490809 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 46656, while the sum is 41.

The square root of 92490809 is about 9617.2142016282. The cubic root of 92490809 is about 452.2371054144.

The spelling of 92490809 in words is "ninety-two million, four hundred ninety thousand, eight hundred nine".