3612639 has 8 divisors (see below), whose sum is σ = 4907952. Its totient is φ = 2362880.

The previous prime is 3612613. The next prime is 3612659. The reversal of 3612639 is 9362163.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 3612639 - 2⁵ = 3612607 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3612659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11202 + ... + 11519.

It is an arithmetic number, because the mean of its divisors is an integer number (613494).

Almost surely, 2^3612639 is an apocalyptic number.

3612639 is a deficient number, since it is larger than the sum of its proper divisors (1295313).

3612639 is a wasteful number, since it uses less digits than its factorization.

3612639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22777.

The product of its digits is 5832, while the sum is 30.

The square root of 3612639 is about 1900.6943468112. The cubic root of 3612639 is about 153.4410359673.

The spelling of 3612639 in words is "three million, six hundred twelve thousand, six hundred thirty-nine".