345298 has 4 divisors (see below), whose sum is σ = 517950. Its totient is φ = 172648.

The previous prime is 345271. The next prime is 345307. The reversal of 345298 is 892543.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 892543 = 191 ⋅4673.

It can be written as a sum of positive squares in only one way, i.e., 344569 + 729 = 587^2 + 27^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an alternating number because its digits alternate between odd and even.

It is a plaindrome in base 6 and base 12.

It is an unprimeable number.

345298 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86323 + ... + 86326.

2³⁴⁵²⁹⁸ is an apocalyptic number.

345298 is a deficient number, since it is larger than the sum of its proper divisors (172652).

345298 is a wasteful number, since it uses less digits than its factorization.

345298 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172651.

The product of its digits is 8640, while the sum is 31.

The square root of 345298 is about 587.6206259144. The cubic root of 345298 is about 70.1559787102.

The spelling of 345298 in words is "three hundred forty-five thousand, two hundred ninety-eight".