80859836 has 6 divisors (see below), whose sum is σ = 141504720. Its totient is φ = 40429916.

The previous prime is 80859833. The next prime is 80859847. The reversal of 80859836 is 63895808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80859833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10107476 + ... + 10107483.

It is an arithmetic number, because the mean of its divisors is an integer number (23584120).

Almost surely, 2^80859836 is an apocalyptic number.

It is an amenable number.

80859836 is a deficient number, since it is larger than the sum of its proper divisors (60644884).

80859836 is a wasteful number, since it uses less digits than its factorization.

80859836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20214963 (or 20214961 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 47.

The square root of 80859836 is about 8992.2097395468. The cubic root of 80859836 is about 432.4251572857.

The spelling of 80859836 in words is "eighty million, eight hundred fifty-nine thousand, eight hundred thirty-six".