345706 has 4 divisors (see below), whose sum is σ = 518562. Its totient is φ = 172852.

The previous prime is 345701. The next prime is 345707. The reversal of 345706 is 607543.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 607543 = 541 ⋅1123.

It can be written as a sum of positive squares in only one way, i.e., 342225 + 3481 = 585^2 + 59^2 .

It is not an unprimeable number, because it can be changed into a prime (345701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86425 + ... + 86428.

2³⁴⁵⁷⁰⁶ is an apocalyptic number.

345706 is a deficient number, since it is larger than the sum of its proper divisors (172856).

345706 is a wasteful number, since it uses less digits than its factorization.

345706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172855.

The product of its (nonzero) digits is 2520, while the sum is 25.

The square root of 345706 is about 587.9676861869. The cubic root of 345706 is about 70.1835996569.

The spelling of 345706 in words is "three hundred forty-five thousand, seven hundred six".