3989342 has 16 divisors (see below), whose sum is σ = 6927360. Its totient is φ = 1687608.

The previous prime is 3989333. The next prime is 3989351. The reversal of 3989342 is 2439893.

It is an interprime number because it is at equal distance from previous prime (3989333) and next prime (3989351).

It is a super-3 number, since 3×3989342³ (a number of 21 digits) contains 333 as substring.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 3989296 and 3989305.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 698 + ... + 2909.

It is an arithmetic number, because the mean of its divisors is an integer number (432960).

Almost surely, 2^3989342 is an apocalyptic number.

3989342 is a deficient number, since it is larger than the sum of its proper divisors (2938018).

3989342 is a wasteful number, since it uses less digits than its factorization.

3989342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3695.

The product of its digits is 46656, while the sum is 38.

The square root of 3989342 is about 1997.3337227414. Note that the first 3 decimals coincide. The cubic root of 3989342 is about 158.5989921205.

The spelling of 3989342 in words is "three million, nine hundred eighty-nine thousand, three hundred forty-two".