80718733 has 2 divisors, whose sum is σ = 80718734. Its totient is φ = 80718732.

The previous prime is 80718727. The next prime is 80718749. The reversal of 80718733 is 33781708.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 79085449 + 1633284 = 8893^2 + 1278^2 .

It is a cyclic number.

It is not a de Polignac number, because 80718733 - 2⁹ = 80718221 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 80718692 and 80718701.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80718773) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40359366 + 40359367.

It is an arithmetic number, because the mean of its divisors is an integer number (40359367).

Almost surely, 2^80718733 is an apocalyptic number.

It is an amenable number.

80718733 is a deficient number, since it is larger than the sum of its proper divisors (1).

80718733 is an equidigital number, since it uses as much as digits as its factorization.

80718733 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28224, while the sum is 37.

The square root of 80718733 is about 8984.3604669448. The cubic root of 80718733 is about 432.1734789233.

The spelling of 80718733 in words is "eighty million, seven hundred eighteen thousand, seven hundred thirty-three".