80937291 has 4 divisors (see below), whose sum is σ = 107916392. Its totient is φ = 53958192.

The previous prime is 80937287. The next prime is 80937293. The reversal of 80937291 is 19273908.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 80937291 - 2² = 80937287 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80937293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13489546 + ... + 13489551.

It is an arithmetic number, because the mean of its divisors is an integer number (26979098).

Almost surely, 2^80937291 is an apocalyptic number.

80937291 is a deficient number, since it is larger than the sum of its proper divisors (26979101).

80937291 is a wasteful number, since it uses less digits than its factorization.

80937291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26979100.

The product of its (nonzero) digits is 27216, while the sum is 39.

The square root of 80937291 is about 8996.5154921225. The cubic root of 80937291 is about 432.5631854404.

The spelling of 80937291 in words is "eighty million, nine hundred thirty-seven thousand, two hundred ninety-one".