80861852 has 6 divisors (see below), whose sum is σ = 141508248. Its totient is φ = 40430924.

The previous prime is 80861849. The next prime is 80861861. The reversal of 80861852 is 25816808.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10107728 + ... + 10107735.

It is an arithmetic number, because the mean of its divisors is an integer number (23584708).

Almost surely, 2^80861852 is an apocalyptic number.

It is an amenable number.

80861852 is a deficient number, since it is larger than the sum of its proper divisors (60646396).

80861852 is a wasteful number, since it uses less digits than its factorization.

80861852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20215467 (or 20215465 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 38.

The square root of 80861852 is about 8992.3218358775. The cubic root of 80861852 is about 432.4287510017.

The spelling of 80861852 in words is "eighty million, eight hundred sixty-one thousand, eight hundred fifty-two".