810476985 has 16 divisors (see below), whose sum is σ = 1303557120. Its totient is φ = 429989760.

The previous prime is 810476959. The next prime is 810477011. The reversal of 810476985 is 589674018.

It is an interprime number because it is at equal distance from previous prime (810476959) and next prime (810477011).

It is not a de Polignac number, because 810476985 - 2¹¹ = 810474937 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 138580 + ... + 144309.

It is an arithmetic number, because the mean of its divisors is an integer number (81472320).

Almost surely, 2^810476985 is an apocalyptic number.

It is an amenable number.

810476985 is a deficient number, since it is larger than the sum of its proper divisors (493080135).

810476985 is a wasteful number, since it uses less digits than its factorization.

810476985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 283088.

The product of its (nonzero) digits is 483840, while the sum is 48.

The square root of 810476985 is about 28468.8774805049. The cubic root of 810476985 is about 932.3526915972.

The spelling of 810476985 in words is "eight hundred ten million, four hundred seventy-six thousand, nine hundred eighty-five".