345827 has 4 divisors (see below), whose sum is σ = 348000. Its totient is φ = 343656.

The previous prime is 345823. The next prime is 345853. The reversal of 345827 is 728543.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 728543 = 241 ⋅3023.

It is a cyclic number.

It is not a de Polignac number, because 345827 - 2² = 345823 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 345827.

It is not an unprimeable number, because it can be changed into a prime (345823) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 827 + ... + 1172.

It is an arithmetic number, because the mean of its divisors is an integer number (87000).

2³⁴⁵⁸²⁷ is an apocalyptic number.

345827 is a deficient number, since it is larger than the sum of its proper divisors (2173).

345827 is a wasteful number, since it uses less digits than its factorization.

345827 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2172.

The product of its digits is 6720, while the sum is 29.

The square root of 345827 is about 588.0705739960. The cubic root of 345827 is about 70.1917869846.

The spelling of 345827 in words is "three hundred forty-five thousand, eight hundred twenty-seven".