810987082 has 8 divisors (see below), whose sum is σ = 1220633316. Its totient is φ = 404109312.

The previous prime is 810987031. The next prime is 810987097. The reversal of 810987082 is 280789018.

It can be written as a sum of positive squares in 2 ways, for example, as 520250481 + 290736601 = 22809^2 + 17051^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 691383 + ... + 692554.

Almost surely, 2^810987082 is an apocalyptic number.

810987082 is a deficient number, since it is larger than the sum of its proper divisors (409646234).

810987082 is a wasteful number, since it uses less digits than its factorization.

810987082 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1384232.

The product of its (nonzero) digits is 64512, while the sum is 43.

The square root of 810987082 is about 28477.8349247270. The cubic root of 810987082 is about 932.5482515696.

The spelling of 810987082 in words is "eight hundred ten million, nine hundred eighty-seven thousand, eighty-two".