809882974 has 4 divisors (see below), whose sum is σ = 1214824464. Its totient is φ = 404941486.

The previous prime is 809882947. The next prime is 809883023. The reversal of 809882974 is 479288908.

809882974 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202470742 + ... + 202470745.

It is an arithmetic number, because the mean of its divisors is an integer number (303706116).

Almost surely, 2^809882974 is an apocalyptic number.

809882974 is a deficient number, since it is larger than the sum of its proper divisors (404941490).

809882974 is a wasteful number, since it uses less digits than its factorization.

809882974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 404941489.

The product of its (nonzero) digits is 2322432, while the sum is 55.

The square root of 809882974 is about 28458.4429299988. The cubic root of 809882974 is about 932.1248574029.

The spelling of 809882974 in words is "eight hundred nine million, eight hundred eighty-two thousand, nine hundred seventy-four".