80753681 has 2 divisors, whose sum is σ = 80753682. Its totient is φ = 80753680.

The previous prime is 80753663. The next prime is 80753683. The reversal of 80753681 is 18635708.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 80263681 + 490000 = 8959^2 + 700^2 .

It is a cyclic number.

It is not a de Polignac number, because 80753681 - 2¹⁴ = 80737297 is a prime.

It is a super-2 number, since 2×80753681² = 13042313990099522, which contains 22 as substring.

Together with 80753683, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (80753683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40376840 + 40376841.

It is an arithmetic number, because the mean of its divisors is an integer number (40376841).

Almost surely, 2^80753681 is an apocalyptic number.

It is an amenable number.

80753681 is a deficient number, since it is larger than the sum of its proper divisors (1).

80753681 is an equidigital number, since it uses as much as digits as its factorization.

80753681 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40320, while the sum is 38.

The square root of 80753681 is about 8986.3051917905. The cubic root of 80753681 is about 432.2358412315.

The spelling of 80753681 in words is "eighty million, seven hundred fifty-three thousand, six hundred eighty-one".