3312649 has 4 divisors (see below), whose sum is σ = 3333136. Its totient is φ = 3292164.

The previous prime is 3312623. The next prime is 3312653. The reversal of 3312649 is 9462133.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3312649 - 2²¹ = 1215497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3312679) 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, 9999 + ... + 10324.

It is an arithmetic number, because the mean of its divisors is an integer number (833284).

Almost surely, 2^3312649 is an apocalyptic number.

It is an amenable number.

3312649 is a deficient number, since it is larger than the sum of its proper divisors (20487).

3312649 is a wasteful number, since it uses less digits than its factorization.

3312649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20486.

The product of its digits is 3888, while the sum is 28.

The square root of 3312649 is about 1820.0684053079. The cubic root of 3312649 is about 149.0705339970.

Subtracting from 3312649 its product of digits (3888), we obtain a square (3308761 = 1819²).

The spelling of 3312649 in words is "three million, three hundred twelve thousand, six hundred forty-nine".