297883985 has 12 divisors (see below), whose sum is σ = 415822068. Its totient is φ = 204263136.

The previous prime is 297883939. The next prime is 297883987. The reversal of 297883985 is 589388792.

It can be written as a sum of positive squares in 2 ways, for example, as 33918976 + 263965009 = 5824^2 + 16247^2 .

It is not a de Polignac number, because 297883985 - 2⁶ = 297883921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (297883987) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 607682 + ... + 608171.

It is an arithmetic number, because the mean of its divisors is an integer number (34651839).

Almost surely, 2^297883985 is an apocalyptic number.

It is an amenable number.

297883985 is a deficient number, since it is larger than the sum of its proper divisors (117938083).

297883985 is a wasteful number, since it uses less digits than its factorization.

297883985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1215872 (or 1215865 counting only the distinct ones).

The product of its digits is 8709120, while the sum is 59.

The square root of 297883985 is about 17259.3158902663. The cubic root of 297883985 is about 667.8553126161.

The spelling of 297883985 in words is "two hundred ninety-seven million, eight hundred eighty-three thousand, nine hundred eighty-five".