80875391 has 8 divisors (see below), whose sum is σ = 83020800. Its totient is φ = 78747768.

The previous prime is 80875369. The next prime is 80875397. The reversal of 80875391 is 19357808.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-80875391 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80875397) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5030 + ... + 13676.

It is an arithmetic number, because the mean of its divisors is an integer number (10377600).

Almost surely, 2^80875391 is an apocalyptic number.

80875391 is a deficient number, since it is larger than the sum of its proper divisors (2145409).

80875391 is a wasteful number, since it uses less digits than its factorization.

80875391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8893.

The product of its (nonzero) digits is 60480, while the sum is 41.

The square root of 80875391 is about 8993.0746132788. The cubic root of 80875391 is about 432.4528840385.

The spelling of 80875391 in words is "eighty million, eight hundred seventy-five thousand, three hundred ninety-one".