339708643 has 16 divisors (see below), whose sum is σ = 364066560. Its totient is φ = 316207584.

The previous prime is 339708599. The next prime is 339708653. The reversal of 339708643 is 346807933.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-339708643 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (43).

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 339708643.

It is not an unprimeable number, because it can be changed into a prime (339708653) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 384280 + ... + 385162.

It is an arithmetic number, because the mean of its divisors is an integer number (22754160).

Almost surely, 2^339708643 is an apocalyptic number.

339708643 is a deficient number, since it is larger than the sum of its proper divisors (24357917).

339708643 is a wasteful number, since it uses less digits than its factorization.

339708643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1338.

The product of its (nonzero) digits is 326592, while the sum is 43.

The square root of 339708643 is about 18431.1866953813. The cubic root of 339708643 is about 697.7537814887.

The spelling of 339708643 in words is "three hundred thirty-nine million, seven hundred eight thousand, six hundred forty-three".