3886989 has 8 divisors (see below), whose sum is σ = 5231520. Its totient is φ = 2566896.

The previous prime is 3886951. The next prime is 3886991. The reversal of 3886989 is 9896883.

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

It is not a de Polignac number, because 3886989 - 2⁸ = 3886733 is a prime.

It is a super-2 number, since 2×3886989² = 30217366972242, which contains 22 as substring.

It is an Ulam number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3886919) 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, 5734 + ... + 6375.

It is an arithmetic number, because the mean of its divisors is an integer number (653940).

Almost surely, 2^3886989 is an apocalyptic number.

It is an amenable number.

3886989 is a deficient number, since it is larger than the sum of its proper divisors (1344531).

3886989 is a wasteful number, since it uses less digits than its factorization.

3886989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12219.

The product of its digits is 746496, while the sum is 51.

The square root of 3886989 is about 1971.5448257648. The cubic root of 3886989 is about 157.2308529980.

The spelling of 3886989 in words is "three million, eight hundred eighty-six thousand, nine hundred eighty-nine".