297994800321 has 81 divisors (see below), whose sum is σ = 464813695593. Its totient is φ = 183942757440.

The previous prime is 297994800263. The next prime is 297994800401. The reversal of 297994800321 is 123008499792.

The square root of 297994800321 is 545889.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 158519441025 + 139475359296 = 398145^2 + 373464^2 .

It is not a de Polignac number, because 297994800321 - 2¹¹ = 297994798273 is a prime.

It is not an unprimeable number, because it can be changed into a prime (297994804321) by changing a digit.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 1898055975 + ... + 1898056131.

Almost surely, 2^297994800321 is an apocalyptic number.

297994800321 is the 545889-th square number.

297994800321 is the 272945-th centered octagonal number.

It is an amenable number.

297994800321 is a deficient number, since it is larger than the sum of its proper divisors (166818895272).

297994800321 is an equidigital number, since it uses as much as digits as its factorization.

297994800321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 480 (or 240 counting only the distinct ones).

The product of its (nonzero) digits is 1959552, while the sum is 54.

The spelling of 297994800321 in words is "two hundred ninety-seven billion, nine hundred ninety-four million, eight hundred thousand, three hundred twenty-one".