345946 has 4 divisors (see below), whose sum is σ = 518922. Its totient is φ = 172972.

The previous prime is 345937. The next prime is 345953. The reversal of 345946 is 649543.

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., 342225 + 3721 = 585^2 + 61^2 .

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 unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86485 + ... + 86488.

2³⁴⁵⁹⁴⁶ is an apocalyptic number.

345946 is a deficient number, since it is larger than the sum of its proper divisors (172976).

345946 is a wasteful number, since it uses less digits than its factorization.

345946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172975.

The product of its digits is 12960, while the sum is 31.

The square root of 345946 is about 588.1717436260. The cubic root of 345946 is about 70.1998371222.

The spelling of 345946 in words is "three hundred forty-five thousand, nine hundred forty-six".