797281 has 2 divisors, whose sum is σ = 797282. Its totient is φ = 797280.

The previous prime is 797273. The next prime is 797287. The reversal of 797281 is 182797.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 707281 + 90000 = 841^2 + 300^2 .

It is a cyclic number.

It is not a de Polignac number, because 797281 - 2³ = 797273 is a prime.

It is a super-2 number, since 2×797281² = 1271313985922, which contains 22 as substring.

797281 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (797287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 398640 + 398641.

It is an arithmetic number, because the mean of its divisors is an integer number (398641).

2⁷⁹⁷²⁸¹ is an apocalyptic number.

It is an amenable number.

797281 is a deficient number, since it is larger than the sum of its proper divisors (1).

797281 is an equidigital number, since it uses as much as digits as its factorization.

797281 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7056, while the sum is 34.

The square root of 797281 is about 892.9059300957. The cubic root of 797281 is about 92.7264866302.

The spelling of 797281 in words is "seven hundred ninety-seven thousand, two hundred eighty-one".