80353891 has 16 divisors (see below), whose sum is σ = 85671936. Its totient is φ = 75240000.

The previous prime is 80353859. The next prime is 80353901. The reversal of 80353891 is 19835308.

It is a cyclic number.

It is not a de Polignac number, because 80353891 - 2⁵ = 80353859 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 80353891.

It is not an unprimeable number, because it can be changed into a prime (80353841) 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, 242596 + ... + 242926.

It is an arithmetic number, because the mean of its divisors is an integer number (5354496).

Almost surely, 2^80353891 is an apocalyptic number.

80353891 is a deficient number, since it is larger than the sum of its proper divisors (5318045).

80353891 is a wasteful number, since it uses less digits than its factorization.

80353891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 594.

The product of its (nonzero) digits is 25920, while the sum is 37.

The square root of 80353891 is about 8964.0331882474. The cubic root of 80353891 is about 431.5213659699.

The spelling of 80353891 in words is "eighty million, three hundred fifty-three thousand, eight hundred ninety-one".