80764997 has 2 divisors, whose sum is σ = 80764998. Its totient is φ = 80764996.

The previous prime is 80764987. The next prime is 80765017. The reversal of 80764997 is 79946708.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 45171841 + 35593156 = 6721^2 + 5966^2 .

It is a cyclic number.

It is not a de Polignac number, because 80764997 - 2¹⁶ = 80699461 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80764927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40382498 + 40382499.

It is an arithmetic number, because the mean of its divisors is an integer number (40382499).

Almost surely, 2^80764997 is an apocalyptic number.

It is an amenable number.

80764997 is a deficient number, since it is larger than the sum of its proper divisors (1).

80764997 is an equidigital number, since it uses as much as digits as its factorization.

80764997 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 762048, while the sum is 50.

The square root of 80764997 is about 8986.9347944669. The cubic root of 80764997 is about 432.2560300009.

The spelling of 80764997 in words is "eighty million, seven hundred sixty-four thousand, nine hundred ninety-seven".