801999814 has 32 divisors (see below), whose sum is σ = 1551571200. Its totient is φ = 301691040.

The previous prime is 801999797. The next prime is 801999829. The reversal of 801999814 is 418999108.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 85324 + ... + 94255.

It is an arithmetic number, because the mean of its divisors is an integer number (48486600).

Almost surely, 2^801999814 is an apocalyptic number.

801999814 is a deficient number, since it is larger than the sum of its proper divisors (749571386).

801999814 is a wasteful number, since it uses less digits than its factorization.

801999814 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179628.

The product of its (nonzero) digits is 186624, while the sum is 49.

The square root of 801999814 is about 28319.6012330682. The cubic root of 801999814 is about 929.0906492653.

The spelling of 801999814 in words is "eight hundred one million, nine hundred ninety-nine thousand, eight hundred fourteen".