80499677 has 2 divisors, whose sum is σ = 80499678. Its totient is φ = 80499676.

The previous prime is 80499649. The next prime is 80499691. The reversal of 80499677 is 77699408.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 66765241 + 13734436 = 8171^2 + 3706^2 .

It is a cyclic number.

It is not a de Polignac number, because 80499677 - 2¹² = 80495581 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80499697) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40249838 + 40249839.

It is an arithmetic number, because the mean of its divisors is an integer number (40249839).

Almost surely, 2^80499677 is an apocalyptic number.

It is an amenable number.

80499677 is a deficient number, since it is larger than the sum of its proper divisors (1).

80499677 is an equidigital number, since it uses as much as digits as its factorization.

80499677 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 80499677 is about 8972.1612223589. The cubic root of 80499677 is about 431.7821779259.

The spelling of 80499677 in words is "eighty million, four hundred ninety-nine thousand, six hundred seventy-seven".