297894663 has 48 divisors (see below), whose sum is σ = 482366976. Its totient is φ = 175633920.

The previous prime is 297894637. The next prime is 297894703. The reversal of 297894663 is 366498792.

It is a happy number.

It is not a de Polignac number, because 297894663 - 2⁵ = 297894631 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (297894613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 643170 + ... + 643632.

It is an arithmetic number, because the mean of its divisors is an integer number (10049312).

Almost surely, 2^297894663 is an apocalyptic number.

297894663 is a deficient number, since it is larger than the sum of its proper divisors (184472313).

297894663 is a wasteful number, since it uses less digits than its factorization.

297894663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 644 (or 641 counting only the distinct ones).

The product of its digits is 3919104, while the sum is 54.

The square root of 297894663 is about 17259.6252276809. The cubic root of 297894663 is about 667.8632925391.

The spelling of 297894663 in words is "two hundred ninety-seven million, eight hundred ninety-four thousand, six hundred sixty-three".