902494849 has 2 divisors, whose sum is σ = 902494850. Its totient is φ = 902494848.

The previous prime is 902494843. The next prime is 902494871. The reversal of 902494849 is 948494209.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 851472400 + 51022449 = 29180^2 + 7143^2 .

It is a cyclic number.

It is not a de Polignac number, because 902494849 - 2³ = 902494841 is a prime.

It is not a weakly prime, because it can be changed into another prime (902494841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 451247424 + 451247425.

It is an arithmetic number, because the mean of its divisors is an integer number (451247425).

Almost surely, 2^902494849 is an apocalyptic number.

It is an amenable number.

902494849 is a deficient number, since it is larger than the sum of its proper divisors (1).

902494849 is an equidigital number, since it uses as much as digits as its factorization.

902494849 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 746496, while the sum is 49.

The square root of 902494849 is about 30041.5520404656. The cubic root of 902494849 is about 966.3806912420.

The spelling of 902494849 in words is "nine hundred two million, four hundred ninety-four thousand, eight hundred forty-nine".