897236641 has 8 divisors (see below), whose sum is σ = 1028121920. Its totient is φ = 767028528.

The previous prime is 897236621. The next prime is 897236651. The reversal of 897236641 is 146632798.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 897236641 - 2²¹ = 895139489 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 897236591 and 897236600.

It is not an unprimeable number, because it can be changed into a prime (897236621) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 166446 + ... + 171751.

It is an arithmetic number, because the mean of its divisors is an integer number (128515240).

Almost surely, 2^897236641 is an apocalyptic number.

It is an amenable number.

897236641 is a deficient number, since it is larger than the sum of its proper divisors (130885279).

897236641 is a wasteful number, since it uses less digits than its factorization.

897236641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 338583.

The product of its digits is 435456, while the sum is 46.

The square root of 897236641 is about 29953.9086097290. The cubic root of 897236641 is about 964.5002256984.

The spelling of 897236641 in words is "eight hundred ninety-seven million, two hundred thirty-six thousand, six hundred forty-one".