297994 has 4 divisors (see below), whose sum is σ = 446994. Its totient is φ = 148996.

The previous prime is 297991. The next prime is 298013. The reversal of 297994 is 499792.

297994 = T₃₈₄ + T₃₈₅ + ... + T₃₈₇.

297994 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in only one way, i.e., 149769 + 148225 = 387^2 + 385^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (297991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74497 + ... + 74500.

2²⁹⁷⁹⁹⁴ is an apocalyptic number.

297994 is a deficient number, since it is larger than the sum of its proper divisors (149000).

297994 is a wasteful number, since it uses less digits than its factorization.

297994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148999.

The product of its digits is 40824, while the sum is 40.

The square root of 297994 is about 545.8882669558. Note that the first 3 decimals coincide. The cubic root of 297994 is about 66.7937520302.

The spelling of 297994 in words is "two hundred ninety-seven thousand, nine hundred ninety-four".