352639 has 4 divisors (see below), whose sum is σ = 403024. Its totient is φ = 302256.

The previous prime is 352637. The next prime is 352661. The reversal of 352639 is 936253.

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 352639 - 2¹ = 352637 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (352633) 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, 25182 + ... + 25195.

It is an arithmetic number, because the mean of its divisors is an integer number (100756).

2³⁵²⁶³⁹ is an apocalyptic number.

352639 is a deficient number, since it is larger than the sum of its proper divisors (50385).

352639 is an equidigital number, since it uses as much as digits as its factorization.

352639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50384.

The product of its digits is 4860, while the sum is 28.

The square root of 352639 is about 593.8341519313. The cubic root of 352639 is about 70.6496661173.

The spelling of 352639 in words is "three hundred fifty-two thousand, six hundred thirty-nine".