3911628 has 24 divisors (see below), whose sum is σ = 10431232. Its totient is φ = 1117584.

The previous prime is 3911627. The next prime is 3911647. The reversal of 3911628 is 8261193.

It is a super-2 number, since 2×3911628² = 30601667220768, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3911595 and 3911604.

It is not an unprimeable number, because it can be changed into a prime (3911623) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23200 + ... + 23367.

Almost surely, 2^3911628 is an apocalyptic number.

It is an amenable number.

3911628 is an abundant number, since it is smaller than the sum of its proper divisors (6519604).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3911628 is a wasteful number, since it uses less digits than its factorization.

3911628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46581 (or 46579 counting only the distinct ones).

The product of its digits is 2592, while the sum is 30.

The square root of 3911628 is about 1977.7836079814. The cubic root of 3911628 is about 157.5623738842.

It can be divided in two parts, 391162 and 8, that added together give a triangular number (391170 = T₈₈₄).

The spelling of 3911628 in words is "three million, nine hundred eleven thousand, six hundred twenty-eight".