810882497 has 4 divisors (see below), whose sum is σ = 811679280. Its totient is φ = 810085716.

The previous prime is 810882431. The next prime is 810882509. The reversal of 810882497 is 794288018.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 810882497 - 2¹⁰ = 810881473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (810882197) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 396863 + ... + 398900.

It is an arithmetic number, because the mean of its divisors is an integer number (202919820).

Almost surely, 2^810882497 is an apocalyptic number.

It is an amenable number.

810882497 is a deficient number, since it is larger than the sum of its proper divisors (796783).

810882497 is a wasteful number, since it uses less digits than its factorization.

810882497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 796782.

The product of its (nonzero) digits is 258048, while the sum is 47.

The square root of 810882497 is about 28475.9986128669. The cubic root of 810882497 is about 932.5081626648.

The spelling of 810882497 in words is "eight hundred ten million, eight hundred eighty-two thousand, four hundred ninety-seven".