80081597 has 2 divisors, whose sum is σ = 80081598. Its totient is φ = 80081596.

The previous prime is 80081581. The next prime is 80081621. The reversal of 80081597 is 79518008.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 78039556 + 2042041 = 8834^2 + 1429^2 .

It is a cyclic number.

It is not a de Polignac number, because 80081597 - 2⁴ = 80081581 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 80081597.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80081497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40040798 + 40040799.

It is an arithmetic number, because the mean of its divisors is an integer number (40040799).

Almost surely, 2^80081597 is an apocalyptic number.

It is an amenable number.

80081597 is a deficient number, since it is larger than the sum of its proper divisors (1).

80081597 is an equidigital number, since it uses as much as digits as its factorization.

80081597 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20160, while the sum is 38.

The square root of 80081597 is about 8948.8321584439. The cubic root of 80081597 is about 431.0333844005.

The spelling of 80081597 in words is "eighty million, eighty-one thousand, five hundred ninety-seven".