297961 has 4 divisors (see below), whose sum is σ = 306052. Its totient is φ = 289872.

The previous prime is 297953. The next prime is 297967. The reversal of 297961 is 169792.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 250000 + 47961 = 500^2 + 219^2 .

It is a cyclic number.

It is not a de Polignac number, because 297961 - 2³ = 297953 is a prime.

It is a Duffinian number.

297961 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (297967) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3990 + ... + 4063.

It is an arithmetic number, because the mean of its divisors is an integer number (76513).

2²⁹⁷⁹⁶¹ is an apocalyptic number.

It is an amenable number.

297961 is a deficient number, since it is larger than the sum of its proper divisors (8091).

297961 is an equidigital number, since it uses as much as digits as its factorization.

297961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8090.

The product of its digits is 6804, while the sum is 34.

The square root of 297961 is about 545.8580401533. The cubic root of 297961 is about 66.7912863483.

The spelling of 297961 in words is "two hundred ninety-seven thousand, nine hundred sixty-one".