3888724 has 12 divisors (see below), whose sum is σ = 7777504. Its totient is φ = 1666584.

The previous prime is 3888721. The next prime is 3888761. The reversal of 3888724 is 4278883.

3888724 is an admirable number.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3888721) 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, 69414 + ... + 69469.

Almost surely, 2^3888724 is an apocalyptic number.

It is an amenable number.

3888724 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

3888724 is a wasteful number, since it uses less digits than its factorization.

3888724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138894 (or 138892 counting only the distinct ones).

The product of its digits is 86016, while the sum is 40.

The square root of 3888724 is about 1971.9847869596. The cubic root of 3888724 is about 157.2542434211.

The spelling of 3888724 in words is "three million, eight hundred eighty-eight thousand, seven hundred twenty-four".