810091602 has 24 divisors (see below), whose sum is σ = 1831512384. Its totient is φ = 258289944.

The previous prime is 810091589. The next prime is 810091621. The reversal of 810091602 is 206190018.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 977958 + ... + 978785.

It is an arithmetic number, because the mean of its divisors is an integer number (76313016).

Almost surely, 2^810091602 is an apocalyptic number.

810091602 is an abundant number, since it is smaller than the sum of its proper divisors (1021420782).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

810091602 is a wasteful number, since it uses less digits than its factorization.

810091602 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1956774 (or 1956771 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 27.

The square root of 810091602 is about 28462.1081791212. The cubic root of 810091602 is about 932.2048898088.

The spelling of 810091602 in words is "eight hundred ten million, ninety-one thousand, six hundred two".