897974141 has 2 divisors, whose sum is σ = 897974142. Its totient is φ = 897974140.

The previous prime is 897974093. The next prime is 897974171. The reversal of 897974141 is 141479798.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 573794116 + 324180025 = 23954^2 + 18005^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-897974141 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 897974141.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (897974171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 448987070 + 448987071.

It is an arithmetic number, because the mean of its divisors is an integer number (448987071).

Almost surely, 2^897974141 is an apocalyptic number.

It is an amenable number.

897974141 is a deficient number, since it is larger than the sum of its proper divisors (1).

897974141 is an equidigital number, since it uses as much as digits as its factorization.

897974141 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 508032, while the sum is 50.

The square root of 897974141 is about 29966.2166614339. The cubic root of 897974141 is about 964.7644161691.

The spelling of 897974141 in words is "eight hundred ninety-seven million, nine hundred seventy-four thousand, one hundred forty-one".