897696841 has 4 divisors (see below), whose sum is σ = 909994132. Its totient is φ = 885399552.

The previous prime is 897696817. The next prime is 897696869. The reversal of 897696841 is 148696798.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 267486025 + 630210816 = 16355^2 + 25104^2 .

It is a cyclic number.

It is not a de Polignac number, because 897696841 - 2⁹ = 897696329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (897696871) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6148536 + ... + 6148681.

It is an arithmetic number, because the mean of its divisors is an integer number (227498533).

Almost surely, 2^897696841 is an apocalyptic number.

It is an amenable number.

897696841 is a deficient number, since it is larger than the sum of its proper divisors (12297291).

897696841 is a wasteful number, since it uses less digits than its factorization.

897696841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12297290.

The product of its digits is 5225472, while the sum is 58.

The square root of 897696841 is about 29961.5894271315. The cubic root of 897696841 is about 964.6650975276.

The spelling of 897696841 in words is "eight hundred ninety-seven million, six hundred ninety-six thousand, eight hundred forty-one".