3951328 has 12 divisors (see below), whose sum is σ = 7779240. Its totient is φ = 1975648.

The previous prime is 3951323. The next prime is 3951347. The reversal of 3951328 is 8231593.

It is a happy number.

It is a super-2 number, since 2×3951328² = 31225985927168, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 3951328.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3951323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61708 + ... + 61771.

It is an arithmetic number, because the mean of its divisors is an integer number (648270).

Almost surely, 2^3951328 is an apocalyptic number.

It is an amenable number.

3951328 is a deficient number, since it is larger than the sum of its proper divisors (3827912).

3951328 is a wasteful number, since it uses less digits than its factorization.

3951328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123489 (or 123481 counting only the distinct ones).

The product of its digits is 6480, while the sum is 31.

The square root of 3951328 is about 1987.7947580170. The cubic root of 3951328 is about 158.0936260772.

The spelling of 3951328 in words is "three million, nine hundred fifty-one thousand, three hundred twenty-eight".