3389728 has 12 divisors (see below), whose sum is σ = 6673590. Its totient is φ = 1694848.

The previous prime is 3389719. The next prime is 3389747. The reversal of 3389728 is 8279833.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 2108304 + 1281424 = 1452^2 + 1132^2 .

It is a super-2 number, since 2×3389728² = 22980511827968, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52933 + ... + 52996.

Almost surely, 2^3389728 is an apocalyptic number.

It is an amenable number.

3389728 is a deficient number, since it is larger than the sum of its proper divisors (3283862).

3389728 is a wasteful number, since it uses less digits than its factorization.

3389728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105939 (or 105931 counting only the distinct ones).

The product of its digits is 72576, while the sum is 40.

The square root of 3389728 is about 1841.1213974097. The cubic root of 3389728 is about 150.2178759731.

The spelling of 3389728 in words is "three million, three hundred eighty-nine thousand, seven hundred twenty-eight".