810920486 has 8 divisors (see below), whose sum is σ = 1216523664. Its totient is φ = 405412600.

The previous prime is 810920477. The next prime is 810920489. The reversal of 810920486 is 684029018.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×810920486² = 1315184069228952392, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (810920489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3911 + ... + 40461.

It is an arithmetic number, because the mean of its divisors is an integer number (152065458).

Almost surely, 2^810920486 is an apocalyptic number.

810920486 is a deficient number, since it is larger than the sum of its proper divisors (405603178).

810920486 is a wasteful number, since it uses less digits than its factorization.

810920486 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47646.

The product of its (nonzero) digits is 27648, while the sum is 38.

The square root of 810920486 is about 28476.6656404854. The cubic root of 810920486 is about 932.5227247826.

The spelling of 810920486 in words is "eight hundred ten million, nine hundred twenty thousand, four hundred eighty-six".