80772767 has 2 divisors, whose sum is σ = 80772768. Its totient is φ = 80772766.

The previous prime is 80772749. The next prime is 80772779. The reversal of 80772767 is 76727708.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 80772767 - 2²⁰ = 79724191 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80772737) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40386383 + 40386384.

It is an arithmetic number, because the mean of its divisors is an integer number (40386384).

Almost surely, 2^80772767 is an apocalyptic number.

80772767 is a deficient number, since it is larger than the sum of its proper divisors (1).

80772767 is an equidigital number, since it uses as much as digits as its factorization.

80772767 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 230496, while the sum is 44.

The square root of 80772767 is about 8987.3670782938. The cubic root of 80772767 is about 432.2698912930.

The spelling of 80772767 in words is "eighty million, seven hundred seventy-two thousand, seven hundred sixty-seven".