897827297 has 2 divisors, whose sum is σ = 897827298. Its totient is φ = 897827296.

The previous prime is 897827257. The next prime is 897827339. The reversal of 897827297 is 792728798.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 665691601 + 232135696 = 25801^2 + 15236^2 .

It is a cyclic number.

It is not a de Polignac number, because 897827297 - 2²⁰ = 896778721 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (897827257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 448913648 + 448913649.

It is an arithmetic number, because the mean of its divisors is an integer number (448913649).

Almost surely, 2^897827297 is an apocalyptic number.

It is an amenable number.

897827297 is a deficient number, since it is larger than the sum of its proper divisors (1).

897827297 is an equidigital number, since it uses as much as digits as its factorization.

897827297 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7112448, while the sum is 59.

The square root of 897827297 is about 29963.7664021064. The cubic root of 897827297 is about 964.7118246068.

It can be divided in two parts, 89782 and 7297, that added together give a palindrome (97079).

The spelling of 897827297 in words is "eight hundred ninety-seven million, eight hundred twenty-seven thousand, two hundred ninety-seven".