80779373 has 2 divisors, whose sum is σ = 80779374. Its totient is φ = 80779372.

The previous prime is 80779357. The next prime is 80779453. The reversal of 80779373 is 37397708.

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., 77404804 + 3374569 = 8798^2 + 1837^2 .

It is a cyclic number.

It is not a de Polignac number, because 80779373 - 2⁴ = 80779357 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80779333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40389686 + 40389687.

It is an arithmetic number, because the mean of its divisors is an integer number (40389687).

Almost surely, 2^80779373 is an apocalyptic number.

It is an amenable number.

80779373 is a deficient number, since it is larger than the sum of its proper divisors (1).

80779373 is an equidigital number, since it uses as much as digits as its factorization.

80779373 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 222264, while the sum is 44.

The square root of 80779373 is about 8987.7345866464. The cubic root of 80779373 is about 432.2816753681.

The spelling of 80779373 in words is "eighty million, seven hundred seventy-nine thousand, three hundred seventy-three".