80936617 has 2 divisors, whose sum is σ = 80936618. Its totient is φ = 80936616.

The previous prime is 80936579. The next prime is 80936627. The reversal of 80936617 is 71663908.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 77510416 + 3426201 = 8804^2 + 1851^2 .

It is a cyclic number.

It is not a de Polignac number, because 80936617 - 2⁷ = 80936489 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 80936617.

It is not a weakly prime, because it can be changed into another prime (80936627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40468308 + 40468309.

It is an arithmetic number, because the mean of its divisors is an integer number (40468309).

Almost surely, 2^80936617 is an apocalyptic number.

It is an amenable number.

80936617 is a deficient number, since it is larger than the sum of its proper divisors (1).

80936617 is an equidigital number, since it uses as much as digits as its factorization.

80936617 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54432, while the sum is 40.

The square root of 80936617 is about 8996.4780330972. The cubic root of 80936617 is about 432.5619847232.

The spelling of 80936617 in words is "eighty million, nine hundred thirty-six thousand, six hundred seventeen".