3889742 has 8 divisors (see below), whose sum is σ = 5843016. Its totient is φ = 1942072.

The previous prime is 3889733. The next prime is 3889759. The reversal of 3889742 is 2479883.

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

It is a self number, because there is not a number n which added to its sum of digits gives 3889742.

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 3 ways as a sum of consecutive naturals, for example, 1793 + ... + 3315.

It is an arithmetic number, because the mean of its divisors is an integer number (730377).

Almost surely, 2^3889742 is an apocalyptic number.

3889742 is a deficient number, since it is larger than the sum of its proper divisors (1953274).

3889742 is a wasteful number, since it uses less digits than its factorization.

3889742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2802.

The product of its digits is 96768, while the sum is 41.

The square root of 3889742 is about 1972.2428856508. The cubic root of 3889742 is about 157.2679643617.

The spelling of 3889742 in words is "three million, eight hundred eighty-nine thousand, seven hundred forty-two".