345644743 has 4 divisors (see below), whose sum is σ = 347714640. Its totient is φ = 343574848.

The previous prime is 345644701. The next prime is 345644771. The reversal of 345644743 is 347446543.

It is a happy number.

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 345644743 - 2²¹ = 343547591 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 345644696 and 345644705.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345644443) 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, 1034698 + ... + 1035031.

It is an arithmetic number, because the mean of its divisors is an integer number (86928660).

Almost surely, 2^345644743 is an apocalyptic number.

345644743 is a deficient number, since it is larger than the sum of its proper divisors (2069897).

345644743 is a wasteful number, since it uses less digits than its factorization.

345644743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2069896.

The product of its digits is 483840, while the sum is 40.

The square root of 345644743 is about 18591.5234179451. The cubic root of 345644743 is about 701.7945404304.

The spelling of 345644743 in words is "three hundred forty-five million, six hundred forty-four thousand, seven hundred forty-three".