801539860 has 24 divisors (see below), whose sum is σ = 1836255456. Its totient is φ = 291468960.

The previous prime is 801539821. The next prime is 801539867. The reversal of 801539860 is 68935108.

It is a happy number.

801539860 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×801539860² = 1284932294337639200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (801539867) 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, 1821462 + ... + 1821901.

It is an arithmetic number, because the mean of its divisors is an integer number (76510644).

Almost surely, 2^801539860 is an apocalyptic number.

It is an amenable number.

801539860 is an abundant number, since it is smaller than the sum of its proper divisors (1034715596).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

801539860 is a wasteful number, since it uses less digits than its factorization.

801539860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3643383 (or 3643381 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 40.

The square root of 801539860 is about 28311.4792972745. The cubic root of 801539860 is about 928.9130013933.

The spelling of 801539860 in words is "eight hundred one million, five hundred thirty-nine thousand, eight hundred sixty".