3989285 has 8 divisors (see below), whose sum is σ = 4868640. Its totient is φ = 3137104.

The previous prime is 3989267. The next prime is 3989287. The reversal of 3989285 is 5829893.

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

It is a cyclic number.

It is not a de Polignac number, because 3989285 - 2¹⁴ = 3972901 is a prime.

It is a super-2 number, since 2×3989285² = 31828789622450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3989287) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6467 + ... + 7056.

It is an arithmetic number, because the mean of its divisors is an integer number (608580).

Almost surely, 2^3989285 is an apocalyptic number.

It is an amenable number.

3989285 is a deficient number, since it is larger than the sum of its proper divisors (879355).

3989285 is a wasteful number, since it uses less digits than its factorization.

3989285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13587.

The product of its digits is 155520, while the sum is 44.

The square root of 3989285 is about 1997.3194536678. The cubic root of 3989285 is about 158.5982367590.

The spelling of 3989285 in words is "three million, nine hundred eighty-nine thousand, two hundred eighty-five".