897861343 has 2 divisors, whose sum is σ = 897861344. Its totient is φ = 897861342.

The previous prime is 897861331. The next prime is 897861347. The reversal of 897861343 is 343168798.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-897861343 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (897861347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 448930671 + 448930672.

It is an arithmetic number, because the mean of its divisors is an integer number (448930672).

Almost surely, 2^897861343 is an apocalyptic number.

897861343 is a deficient number, since it is larger than the sum of its proper divisors (1).

897861343 is an equidigital number, since it uses as much as digits as its factorization.

897861343 is an evil number, because the sum of its binary digits is even.

The product of its digits is 870912, while the sum is 49.

The square root of 897861343 is about 29964.3345162211. The cubic root of 897861343 is about 964.7240185495.

The spelling of 897861343 in words is "eight hundred ninety-seven million, eight hundred sixty-one thousand, three hundred forty-three".