3989386 has 8 divisors (see below), whose sum is σ = 5999940. Its totient is φ = 1989408.

The previous prime is 3989383. The next prime is 3989387. The reversal of 3989386 is 6839893.

It can be written as a sum of positive squares in 2 ways, for example, as 3924361 + 65025 = 1981^2 + 255^2 .

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

It is a super-3 number, since 3×3989386³ (a number of 21 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (3989383) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1621 + ... + 3256.

Almost surely, 2^3989386 is an apocalyptic number.

3989386 is a deficient number, since it is larger than the sum of its proper divisors (2010554).

3989386 is a wasteful number, since it uses less digits than its factorization.

3989386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5288.

The product of its digits is 279936, while the sum is 46.

The square root of 3989386 is about 1997.3447373951. The cubic root of 3989386 is about 158.5995752016.

The spelling of 3989386 in words is "three million, nine hundred eighty-nine thousand, three hundred eighty-six".