810966602 has 4 divisors (see below), whose sum is σ = 1216449906. Its totient is φ = 405483300.

The previous prime is 810966601. The next prime is 810966617. The reversal of 810966602 is 206669018.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 709742881 + 101223721 = 26641^2 + 10061^2 .

It is not an unprimeable number, because it can be changed into a prime (810966601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202741649 + ... + 202741652.

Almost surely, 2^810966602 is an apocalyptic number.

810966602 is a deficient number, since it is larger than the sum of its proper divisors (405483304).

810966602 is a wasteful number, since it uses less digits than its factorization.

810966602 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 405483303.

The product of its (nonzero) digits is 31104, while the sum is 38.

The square root of 810966602 is about 28477.4753445596. The cubic root of 810966602 is about 932.5404015683.

The spelling of 810966602 in words is "eight hundred ten million, nine hundred sixty-six thousand, six hundred two".