897202647 has 24 divisors (see below), whose sum is σ = 1433697408. Its totient is φ = 536096400.

The previous prime is 897202633. The next prime is 897202673. The reversal of 897202647 is 746202798.

It is not a de Polignac number, because 897202647 - 2⁶ = 897202583 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (897202627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 56793 + ... + 70850.

It is an arithmetic number, because the mean of its divisors is an integer number (59737392).

Almost surely, 2^897202647 is an apocalyptic number.

897202647 is a deficient number, since it is larger than the sum of its proper divisors (536494761).

897202647 is a wasteful number, since it uses less digits than its factorization.

897202647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127731 (or 127728 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 45.

The square root of 897202647 is about 29953.3411658867. The cubic root of 897202647 is about 964.4880447296.

The spelling of 897202647 in words is "eight hundred ninety-seven million, two hundred two thousand, six hundred forty-seven".