297299421 has 12 divisors (see below), whose sum is σ = 436473180. Its totient is φ = 194950080.

The previous prime is 297299413. The next prime is 297299437. The reversal of 297299421 is 124992792.

It can be written as a sum of positive squares in 2 ways, for example, as 84548025 + 212751396 = 9195^2 + 14586^2 .

It is not a de Polignac number, because 297299421 - 2³ = 297299413 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (297299461) 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 in 11 ways as a sum of consecutive naturals, for example, 270216 + ... + 271313.

It is an arithmetic number, because the mean of its divisors is an integer number (36372765).

Almost surely, 2^297299421 is an apocalyptic number.

It is an amenable number.

297299421 is a deficient number, since it is larger than the sum of its proper divisors (139173759).

297299421 is a wasteful number, since it uses less digits than its factorization.

297299421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 541596 (or 541593 counting only the distinct ones).

The product of its digits is 163296, while the sum is 45.

The square root of 297299421 is about 17242.3728355467. The cubic root of 297299421 is about 667.4181627566.

The spelling of 297299421 in words is "two hundred ninety-seven million, two hundred ninety-nine thousand, four hundred twenty-one".