80870537 has 8 divisors (see below), whose sum is σ = 91068672. Its totient is φ = 71146800.

The previous prime is 80870519. The next prime is 80870561. The reversal of 80870537 is 73507808.

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

It is a cyclic number.

It is not a de Polignac number, because 80870537 - 2²⁰ = 79821961 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 80870537.

It is not an unprimeable number, because it can be changed into a prime (80870437) 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, 118238 + ... + 118919.

It is an arithmetic number, because the mean of its divisors is an integer number (11383584).

Almost surely, 2^80870537 is an apocalyptic number.

It is an amenable number.

80870537 is a deficient number, since it is larger than the sum of its proper divisors (10198135).

80870537 is a wasteful number, since it uses less digits than its factorization.

80870537 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237199.

The product of its (nonzero) digits is 47040, while the sum is 38.

The square root of 80870537 is about 8992.8047348978. The cubic root of 80870537 is about 432.4442321759. Note that the first 3 decimals are identical.

The spelling of 80870537 in words is "eighty million, eight hundred seventy thousand, five hundred thirty-seven".