801929872 has 20 divisors (see below), whose sum is σ = 1571199660. Its totient is φ = 396459008.

The previous prime is 801929761. The next prime is 801929873. The reversal of 801929872 is 278929108.

It can be written as a sum of positive squares in 2 ways, for example, as 221890816 + 580039056 = 14896^2 + 24084^2 .

It is not an unprimeable number, because it can be changed into a prime (801929873) 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, 280153 + ... + 283000.

It is an arithmetic number, because the mean of its divisors is an integer number (78559983).

Almost surely, 2^801929872 is an apocalyptic number.

It is an amenable number.

801929872 is a deficient number, since it is larger than the sum of its proper divisors (769269788).

801929872 is a wasteful number, since it uses less digits than its factorization.

801929872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 563250 (or 563244 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 46.

The square root of 801929872 is about 28318.3663370612. The cubic root of 801929872 is about 929.0636399709.

The spelling of 801929872 in words is "eight hundred one million, nine hundred twenty-nine thousand, eight hundred seventy-two".