80812371 has 8 divisors (see below), whose sum is σ = 107812864. Its totient is φ = 53843400.

The previous prime is 80812343. The next prime is 80812379. The reversal of 80812371 is 17321808.

It is a happy number.

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

It is not a de Polignac number, because 80812371 - 2⁷ = 80812243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80812379) 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, 1051 + ... + 12756.

It is an arithmetic number, because the mean of its divisors is an integer number (13476608).

Almost surely, 2^80812371 is an apocalyptic number.

80812371 is a deficient number, since it is larger than the sum of its proper divisors (27000493).

80812371 is a wasteful number, since it uses less digits than its factorization.

80812371 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15761.

The product of its (nonzero) digits is 2688, while the sum is 30.

The square root of 80812371 is about 8989.5701232039. The cubic root of 80812371 is about 432.3405290429.

The spelling of 80812371 in words is "eighty million, eight hundred twelve thousand, three hundred seventy-one".