809673952 has 24 divisors (see below), whose sum is σ = 1615886496. Its totient is φ = 399290112.

The previous prime is 809673911. The next prime is 809673971. The reversal of 809673952 is 259376908.

It is a junction number, because it is equal to n+sod(n) for n = 809673896 and 809673905.

It is a congruent number.

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, 170968 + ... + 175639.

It is an arithmetic number, because the mean of its divisors is an integer number (67328604).

Almost surely, 2^809673952 is an apocalyptic number.

It is an amenable number.

809673952 is a deficient number, since it is larger than the sum of its proper divisors (806212544).

809673952 is a wasteful number, since it uses less digits than its factorization.

809673952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 346690 (or 346682 counting only the distinct ones).

The product of its (nonzero) digits is 816480, while the sum is 49.

The square root of 809673952 is about 28454.7702854899. The cubic root of 809673952 is about 932.0446600690.

The spelling of 809673952 in words is "eight hundred nine million, six hundred seventy-three thousand, nine hundred fifty-two".