80165397 has 16 divisors (see below), whose sum is σ = 115270400. Its totient is φ = 49263552.

The previous prime is 80165381. The next prime is 80165429. The reversal of 80165397 is 79356108.

It is not a de Polignac number, because 80165397 - 2⁴ = 80165381 is a prime.

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 a Harshad number since it is a multiple of its sum of digits (39).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80165297) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50979 + ... + 52527.

It is an arithmetic number, because the mean of its divisors is an integer number (7204400).

Almost surely, 2^80165397 is an apocalyptic number.

It is an amenable number.

80165397 is a deficient number, since it is larger than the sum of its proper divisors (35105003).

80165397 is a wasteful number, since it uses less digits than its factorization.

80165397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2892.

The product of its (nonzero) digits is 45360, while the sum is 39.

The square root of 80165397 is about 8953.5131093890. The cubic root of 80165397 is about 431.1836811272.

The spelling of 80165397 in words is "eighty million, one hundred sixty-five thousand, three hundred ninety-seven".