3345639 has 8 divisors (see below), whose sum is σ = 4866432. Its totient is φ = 2027640.

The previous prime is 3345611. The next prime is 3345659. The reversal of 3345639 is 9365433.

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

It is not a de Polignac number, because 3345639 - 2⁵ = 3345607 is a prime.

It is a super-2 number, since 2×3345639² = 22386600636642, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33), and also a Moran number because the ratio is a prime number: 101383 = 3345639 / (3 + 3 + 4 + 5 + 6 + 3 + 9).

3345639 is a lucky number.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3345659) 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, 50659 + ... + 50724.

It is an arithmetic number, because the mean of its divisors is an integer number (608304).

Almost surely, 2^3345639 is an apocalyptic number.

3345639 is a deficient number, since it is larger than the sum of its proper divisors (1520793).

3345639 is a wasteful number, since it uses less digits than its factorization.

3345639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101397.

The product of its digits is 29160, while the sum is 33.

The square root of 3345639 is about 1829.1087993884. The cubic root of 3345639 is about 149.5637547192.

The spelling of 3345639 in words is "three million, three hundred forty-five thousand, six hundred thirty-nine".