3654239 has 4 divisors (see below), whose sum is σ = 3658656. Its totient is φ = 3649824.

The previous prime is 3654227. The next prime is 3654317. The reversal of 3654239 is 9324563.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 3654239 - 2²⁰ = 2605663 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 (3651239) 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, 554 + ... + 2759.

It is an arithmetic number, because the mean of its divisors is an integer number (914664).

Almost surely, 2^3654239 is an apocalyptic number.

3654239 is a deficient number, since it is larger than the sum of its proper divisors (4417).

3654239 is a wasteful number, since it uses less digits than its factorization.

3654239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4416.

The product of its digits is 19440, while the sum is 32.

The square root of 3654239 is about 1911.6063925401. The cubic root of 3654239 is about 154.0277540353.

The spelling of 3654239 in words is "three million, six hundred fifty-four thousand, two hundred thirty-nine".