297856648 has 8 divisors (see below), whose sum is σ = 558481230. Its totient is φ = 148928320.

The previous prime is 297856627. The next prime is 297856667. The reversal of 297856648 is 846658792.

297856648 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 296459524 + 1397124 = 17218^2 + 1182^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18616033 + ... + 18616048.

Almost surely, 2^297856648 is an apocalyptic number.

It is an amenable number.

297856648 is a deficient number, since it is larger than the sum of its proper divisors (260624582).

297856648 is a wasteful number, since it uses less digits than its factorization.

297856648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37232087 (or 37232083 counting only the distinct ones).

The product of its digits is 5806080, while the sum is 55.

The square root of 297856648 is about 17258.5239229779. The cubic root of 297856648 is about 667.8348821576.

The spelling of 297856648 in words is "two hundred ninety-seven million, eight hundred fifty-six thousand, six hundred forty-eight".