345837823 has 4 divisors (see below), whose sum is σ = 345885208. Its totient is φ = 345790440.

The previous prime is 345837809. The next prime is 345837841. The reversal of 345837823 is 328738543.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-345837823 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 345837823.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345837623) 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, 10173 + ... + 28198.

It is an arithmetic number, because the mean of its divisors is an integer number (86471302).

Almost surely, 2^345837823 is an apocalyptic number.

345837823 is a deficient number, since it is larger than the sum of its proper divisors (47385).

345837823 is an equidigital number, since it uses as much as digits as its factorization.

345837823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47384.

The product of its digits is 483840, while the sum is 43.

The square root of 345837823 is about 18596.7153820238. The cubic root of 345837823 is about 701.9251921757.

The spelling of 345837823 in words is "three hundred forty-five million, eight hundred thirty-seven thousand, eight hundred twenty-three".