809875814 has 16 divisors (see below), whose sum is σ = 1331539776. Its totient is φ = 366378600.

The previous prime is 809875813. The next prime is 809875841. The reversal of 809875814 is 418578908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (809875813) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82592 + ... + 91875.

It is an arithmetic number, because the mean of its divisors is an integer number (83221236).

Almost surely, 2^809875814 is an apocalyptic number.

809875814 is a deficient number, since it is larger than the sum of its proper divisors (521663962).

809875814 is a wasteful number, since it uses less digits than its factorization.

809875814 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174691.

The product of its (nonzero) digits is 645120, while the sum is 50.

The square root of 809875814 is about 28458.3171322550. The cubic root of 809875814 is about 932.1221104901.

The spelling of 809875814 in words is "eight hundred nine million, eight hundred seventy-five thousand, eight hundred fourteen".