80927939 has 4 divisors (see below), whose sum is σ = 85688424. Its totient is φ = 76167456.

The previous prime is 80927933. The next prime is 80927941. The reversal of 80927939 is 93972908.

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

It is a cyclic number.

It is not a de Polignac number, because 80927939 - 2⁴ = 80927923 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 80927893 and 80927902.

It is not an unprimeable number, because it can be changed into a prime (80927933) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2380217 + ... + 2380250.

It is an arithmetic number, because the mean of its divisors is an integer number (21422106).

Almost surely, 2^80927939 is an apocalyptic number.

80927939 is a deficient number, since it is larger than the sum of its proper divisors (4760485).

80927939 is a wasteful number, since it uses less digits than its factorization.

80927939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4760484.

The product of its (nonzero) digits is 244944, while the sum is 47.

The square root of 80927939 is about 8995.9957203191. The cubic root of 80927939 is about 432.5465244482.

The spelling of 80927939 in words is "eighty million, nine hundred twenty-seven thousand, nine hundred thirty-nine".