801377872 has 20 divisors (see below), whose sum is σ = 1553216436. Its totient is φ = 400547840.

The previous prime is 801377803. The next prime is 801377879. The reversal of 801377872 is 278773108.

It can be written as a sum of positive squares in 2 ways, for example, as 373880896 + 427496976 = 19336^2 + 20676^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (801377879) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49872 + ... + 63952.

Almost surely, 2^801377872 is an apocalyptic number.

It is an amenable number.

801377872 is a deficient number, since it is larger than the sum of its proper divisors (751838564).

801377872 is a wasteful number, since it uses less digits than its factorization.

801377872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17646 (or 17640 counting only the distinct ones).

The product of its (nonzero) digits is 131712, while the sum is 43.

The square root of 801377872 is about 28308.6183343518. The cubic root of 801377872 is about 928.8504206432.

The spelling of 801377872 in words is "eight hundred one million, three hundred seventy-seven thousand, eight hundred seventy-two".