897954647 has 2 divisors, whose sum is σ = 897954648. Its totient is φ = 897954646.

The previous prime is 897954641. The next prime is 897954683. The reversal of 897954647 is 746459798.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 897954647 - 2⁸ = 897954391 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (897954641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 448977323 + 448977324.

It is an arithmetic number, because the mean of its divisors is an integer number (448977324).

Almost surely, 2^897954647 is an apocalyptic number.

897954647 is a deficient number, since it is larger than the sum of its proper divisors (1).

897954647 is an equidigital number, since it uses as much as digits as its factorization.

897954647 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15240960, while the sum is 59.

The square root of 897954647 is about 29965.8913933826. The cubic root of 897954647 is about 964.7574348049.

The spelling of 897954647 in words is "eight hundred ninety-seven million, nine hundred fifty-four thousand, six hundred forty-seven".