297842 has 4 divisors (see below), whose sum is σ = 446766. Its totient is φ = 148920.

The previous prime is 297841. The next prime is 297853. The reversal of 297842 is 248792.

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., 249001 + 48841 = 499^2 + 221^2 .

It is an Ulam number.

It is a d-powerful number, because it can be written as 2⁹ + 9 + 8 + 7⁴ + 4⁹ + 2¹⁵ .

It is a junction number, because it is equal to n+sod(n) for n = 297799 and 297808.

It is not an unprimeable number, because it can be changed into a prime (297841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74459 + ... + 74462.

2²⁹⁷⁸⁴² is an apocalyptic number.

297842 is a deficient number, since it is larger than the sum of its proper divisors (148924).

297842 is a wasteful number, since it uses less digits than its factorization.

297842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148923.

The product of its digits is 8064, while the sum is 32.

The square root of 297842 is about 545.7490265681. The cubic root of 297842 is about 66.7823934379.

The spelling of 297842 in words is "two hundred ninety-seven thousand, eight hundred forty-two".