3867742 has 8 divisors (see below), whose sum is σ = 5841000. Its totient is φ = 1920744.

The previous prime is 3867739. The next prime is 3867757. The reversal of 3867742 is 2477683.

3867742 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6192 + ... + 6787.

It is an arithmetic number, because the mean of its divisors is an integer number (730125).

Almost surely, 2^3867742 is an apocalyptic number.

3867742 is a deficient number, since it is larger than the sum of its proper divisors (1973258).

3867742 is a wasteful number, since it uses less digits than its factorization.

3867742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13130.

The product of its digits is 56448, while the sum is 37.

The square root of 3867742 is about 1966.6575706004. The cubic root of 3867742 is about 156.9709062078.

It can be divided in two parts, 386 and 7742, that added together give a triangular number (8128 = T₁₂₇).

The spelling of 3867742 in words is "three million, eight hundred sixty-seven thousand, seven hundred forty-two".