80655017 has 4 divisors (see below), whose sum is σ = 80674176. Its totient is φ = 80635860.

The previous prime is 80655013. The next prime is 80655023. The reversal of 80655017 is 71055608.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 80655017 - 2² = 80655013 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80655011) 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, 209 + ... + 12702.

It is an arithmetic number, because the mean of its divisors is an integer number (20168544).

Almost surely, 2^80655017 is an apocalyptic number.

It is an amenable number.

80655017 is a deficient number, since it is larger than the sum of its proper divisors (19159).

80655017 is a wasteful number, since it uses less digits than its factorization.

80655017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19158.

The product of its (nonzero) digits is 8400, while the sum is 32.

The square root of 80655017 is about 8980.8138272653. The cubic root of 80655017 is about 432.0597357524.

The spelling of 80655017 in words is "eighty million, six hundred fifty-five thousand, seventeen".