3864742 has 16 divisors (see below), whose sum is σ = 6787872. Its totient is φ = 1615680.

The previous prime is 3864719. The next prime is 3864767. The reversal of 3864742 is 2474683.

It is a junction number, because it is equal to n+sod(n) for n = 3864698 and 3864707.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2793 + ... + 3940.

It is an arithmetic number, because the mean of its divisors is an integer number (424242).

Almost surely, 2^3864742 is an apocalyptic number.

3864742 is a deficient number, since it is larger than the sum of its proper divisors (2923130).

3864742 is a wasteful number, since it uses less digits than its factorization.

3864742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6783.

The product of its digits is 32256, while the sum is 34.

The square root of 3864742 is about 1965.8947072516. The cubic root of 3864742 is about 156.9303110729.

The spelling of 3864742 in words is "three million, eight hundred sixty-four thousand, seven hundred forty-two".