3864704 has 32 divisors (see below), whose sum is σ = 7797900. Its totient is φ = 1907712.

The previous prime is 3864703. The next prime is 3864709. The reversal of 3864704 is 4074683.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 3841600 + 23104 = 1960^2 + 152^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is a Harshad number since it is a multiple of its sum of digits (32).

It is not an unprimeable number, because it can be changed into a prime (3864703) 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, 13814 + ... + 14090.

Almost surely, 2^3864704 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3864704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3898950).

3864704 is an abundant number, since it is smaller than the sum of its proper divisors (3933196).

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

3864704 is a wasteful number, since it uses less digits than its factorization.

3864704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 400 (or 388 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 32.

The square root of 3864704 is about 1965.8850424173. The cubic root of 3864704 is about 156.9297967331.

The spelling of 3864704 in words is "three million, eight hundred sixty-four thousand, seven hundred four".