791281597 has 2 divisors, whose sum is σ = 791281598. Its totient is φ = 791281596.

The previous prime is 791281583. The next prime is 791281607. The reversal of 791281597 is 795182197.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 784784196 + 6497401 = 28014^2 + 2549^2 .

It is a cyclic number.

It is not a de Polignac number, because 791281597 - 2¹⁹ = 790757309 is a prime.

It is a super-2 number, since 2×791281597² = 1252253131501740818, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 791281597.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (791281537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 395640798 + 395640799.

It is an arithmetic number, because the mean of its divisors is an integer number (395640799).

Almost surely, 2^791281597 is an apocalyptic number.

It is an amenable number.

791281597 is a deficient number, since it is larger than the sum of its proper divisors (1).

791281597 is an equidigital number, since it uses as much as digits as its factorization.

791281597 is an evil number, because the sum of its binary digits is even.

The product of its digits is 317520, while the sum is 49.

The square root of 791281597 is about 28129.7279937080. The cubic root of 791281597 is about 924.9331715050.

The spelling of 791281597 in words is "seven hundred ninety-one million, two hundred eighty-one thousand, five hundred ninety-seven".