3248639 has 6 divisors (see below), whose sum is σ = 3429000. Its totient is φ = 3077316.

The previous prime is 3248621. The next prime is 3248653. The reversal of 3248639 is 9368423.

It is a happy number.

It is not a de Polignac number, because 3248639 - 2¹² = 3244543 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3248599 and 3248608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3248689) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4139 + ... + 4860.

It is an arithmetic number, because the mean of its divisors is an integer number (571500).

Almost surely, 2^3248639 is an apocalyptic number.

3248639 is a deficient number, since it is larger than the sum of its proper divisors (180361).

3248639 is an equidigital number, since it uses as much as digits as its factorization.

3248639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9037 (or 9018 counting only the distinct ones).

The product of its digits is 31104, while the sum is 35.

The square root of 3248639 is about 1802.3981247216. The cubic root of 3248639 is about 148.1041238301.

The spelling of 3248639 in words is "three million, two hundred forty-eight thousand, six hundred thirty-nine".