345739623 has 4 divisors (see below), whose sum is σ = 460986168. Its totient is φ = 230493080.

The previous prime is 345739619. The next prime is 345739649. The reversal of 345739623 is 326937543.

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

It is a cyclic number.

It is not a de Polignac number, because 345739623 - 2² = 345739619 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345739673) 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, 57623268 + ... + 57623273.

It is an arithmetic number, because the mean of its divisors is an integer number (115246542).

Almost surely, 2^345739623 is an apocalyptic number.

345739623 is a deficient number, since it is larger than the sum of its proper divisors (115246545).

345739623 is a wasteful number, since it uses less digits than its factorization.

345739623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115246544.

The product of its digits is 408240, while the sum is 42.

The square root of 345739623 is about 18594.0749433791. The cubic root of 345739623 is about 701.8587491067.

The spelling of 345739623 in words is "three hundred forty-five million, seven hundred thirty-nine thousand, six hundred twenty-three".