3989542 has 8 divisors (see below), whose sum is σ = 5997600. Its totient is φ = 1990344.

The previous prime is 3989533. The next prime is 3989569. The reversal of 3989542 is 2459893.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 3989495 and 3989504.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 942 + ... + 2977.

It is an arithmetic number, because the mean of its divisors is an integer number (749700).

Almost surely, 2^3989542 is an apocalyptic number.

3989542 is a deficient number, since it is larger than the sum of its proper divisors (2008058).

3989542 is a wasteful number, since it uses less digits than its factorization.

3989542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4430.

The product of its digits is 77760, while the sum is 40.

The square root of 3989542 is about 1997.3837888598. The cubic root of 3989542 is about 158.6016424547.

The spelling of 3989542 in words is "three million, nine hundred eighty-nine thousand, five hundred forty-two".