80853736 has 8 divisors (see below), whose sum is σ = 151600770. Its totient is φ = 40426864.

The previous prime is 80853733. The next prime is 80853737. The reversal of 80853736 is 63735808.

It can be written as a sum of positive squares in only one way, i.e., 41088100 + 39765636 = 6410^2 + 6306^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (80853733) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5053351 + ... + 5053366.

Almost surely, 2^80853736 is an apocalyptic number.

It is an amenable number.

80853736 is a deficient number, since it is larger than the sum of its proper divisors (70747034).

80853736 is a wasteful number, since it uses less digits than its factorization.

80853736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10106723 (or 10106719 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 40.

The square root of 80853736 is about 8991.8705506696. The cubic root of 80853736 is about 432.4142830786.

The spelling of 80853736 in words is "eighty million, eight hundred fifty-three thousand, seven hundred thirty-six".