345783 has 8 divisors (see below), whose sum is σ = 467200. Its totient is φ = 227448.

The previous prime is 345773. The next prime is 345791. The reversal of 345783 is 387543.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 345783 - 2⁹ = 345271 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 345783.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345733) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 493 + ... + 966.

It is an arithmetic number, because the mean of its divisors is an integer number (58400).

2³⁴⁵⁷⁸³ is an apocalyptic number.

345783 is a deficient number, since it is larger than the sum of its proper divisors (121417).

345783 is a wasteful number, since it uses less digits than its factorization.

345783 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1541.

The product of its digits is 10080, while the sum is 30.

The square root of 345783 is about 588.0331623302. The cubic root of 345783 is about 70.1888099955.

It can be divided in two parts, 345 and 783, that added together give a triangular number (1128 = T₄₇).

The spelling of 345783 in words is "three hundred forty-five thousand, seven hundred eighty-three".