339621 has 8 divisors (see below), whose sum is σ = 458880. Its totient is φ = 223392.

The previous prime is 339617. The next prime is 339631. The reversal of 339621 is 126933.

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

It is not a de Polignac number, because 339621 - 2² = 339617 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 339591 and 339600.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 339621.

It is not an unprimeable number, because it can be changed into a prime (339601) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 480 + ... + 953.

It is an arithmetic number, because the mean of its divisors is an integer number (57360).

2³³⁹⁶²¹ is an apocalyptic number.

It is an amenable number.

339621 is a deficient number, since it is larger than the sum of its proper divisors (119259).

339621 is a wasteful number, since it uses less digits than its factorization.

339621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1515.

The product of its digits is 972, while the sum is 24.

The square root of 339621 is about 582.7701090482. The cubic root of 339621 is about 69.7693770755.

The spelling of 339621 in words is "three hundred thirty-nine thousand, six hundred twenty-one".