297091 has 4 divisors (see below), whose sum is σ = 310032. Its totient is φ = 284152.

The previous prime is 297083. The next prime is 297097. The reversal of 297091 is 190792.

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

It is a cyclic number.

It is not a de Polignac number, because 297091 - 2³ = 297083 is a prime.

It is a Duffinian number.

297091 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (297097) 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, 6436 + ... + 6481.

It is an arithmetic number, because the mean of its divisors is an integer number (77508).

2²⁹⁷⁰⁹¹ is an apocalyptic number.

297091 is a deficient number, since it is larger than the sum of its proper divisors (12941).

297091 is a wasteful number, since it uses less digits than its factorization.

297091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12940.

The product of its (nonzero) digits is 1134, while the sum is 28.

The square root of 297091 is about 545.0605470955. The cubic root of 297091 is about 66.7262162363.

The spelling of 297091 in words is "two hundred ninety-seven thousand, ninety-one".