80695493 has 2 divisors, whose sum is σ = 80695494. Its totient is φ = 80695492.

The previous prime is 80695369. The next prime is 80695507. The reversal of 80695493 is 39459608.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 68178049 + 12517444 = 8257^2 + 3538^2 .

It is a cyclic number.

It is not a de Polignac number, because 80695493 - 2²² = 76501189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80697493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40347746 + 40347747.

It is an arithmetic number, because the mean of its divisors is an integer number (40347747).

Almost surely, 2^80695493 is an apocalyptic number.

It is an amenable number.

80695493 is a deficient number, since it is larger than the sum of its proper divisors (1).

80695493 is an equidigital number, since it uses as much as digits as its factorization.

80695493 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 233280, while the sum is 44.

The square root of 80695493 is about 8983.0670152237. The cubic root of 80695493 is about 432.1319987722.

The spelling of 80695493 in words is "eighty million, six hundred ninety-five thousand, four hundred ninety-three".