80967577 has 2 divisors, whose sum is σ = 80967578. Its totient is φ = 80967576.

The previous prime is 80967541. The next prime is 80967587. The reversal of 80967577 is 77576908.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 76405081 + 4562496 = 8741^2 + 2136^2 .

It is a cyclic number.

It is not a de Polignac number, because 80967577 - 2¹⁵ = 80934809 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 80967577.

It is not a weakly prime, because it can be changed into another prime (80967527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40483788 + 40483789.

It is an arithmetic number, because the mean of its divisors is an integer number (40483789).

Almost surely, 2^80967577 is an apocalyptic number.

It is an amenable number.

80967577 is a deficient number, since it is larger than the sum of its proper divisors (1).

80967577 is an equidigital number, since it uses as much as digits as its factorization.

80967577 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 740880, while the sum is 49.

The square root of 80967577 is about 8998.1985419305. The cubic root of 80967577 is about 432.6171324520.

It can be divided in two parts, 809 and 67577, that added together give a palindrome (68386).

The spelling of 80967577 in words is "eighty million, nine hundred sixty-seven thousand, five hundred seventy-seven".