80853690 has 32 divisors (see below), whose sum is σ = 194501376. Its totient is φ = 21510720.

The previous prime is 80853679. The next prime is 80853691. The reversal of 80853690 is 9635808.

It is a super-2 number, since 2×80853690² = 13074638373232200, which contains 22 as substring.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (80853691) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10980 + ... + 16800.

It is an arithmetic number, because the mean of its divisors is an integer number (6078168).

Almost surely, 2^80853690 is an apocalyptic number.

80853690 is an abundant number, since it is smaller than the sum of its proper divisors (113647686).

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

80853690 is a wasteful number, since it uses less digits than its factorization.

80853690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6294.

The product of its (nonzero) digits is 51840, while the sum is 39.

The square root of 80853690 is about 8991.8679928033. The cubic root of 80853690 is about 432.4142010744.

The spelling of 80853690 in words is "eighty million, eight hundred fifty-three thousand, six hundred ninety".