345698 has 4 divisors (see below), whose sum is σ = 518550. Its totient is φ = 172848.

The previous prime is 345689. The next prime is 345701. The reversal of 345698 is 896543.

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., 332929 + 12769 = 577^2 + 113^2 .

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

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 345698.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86423 + ... + 86426.

2³⁴⁵⁶⁹⁸ is an apocalyptic number.

345698 is a deficient number, since it is larger than the sum of its proper divisors (172852).

345698 is a wasteful number, since it uses less digits than its factorization.

345698 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172851.

The product of its digits is 25920, while the sum is 35.

The square root of 345698 is about 587.9608830526. The cubic root of 345698 is about 70.1830582786.

The spelling of 345698 in words is "three hundred forty-five thousand, six hundred ninety-eight".