3989415 has 8 divisors (see below), whose sum is σ = 6383088. Its totient is φ = 2127680.

The previous prime is 3989413. The next prime is 3989429. The reversal of 3989415 is 5149893.

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

It is not a de Polignac number, because 3989415 - 2¹ = 3989413 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3989413) 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, 132966 + ... + 132995.

It is an arithmetic number, because the mean of its divisors is an integer number (797886).

Almost surely, 2^3989415 is an apocalyptic number.

3989415 is a deficient number, since it is larger than the sum of its proper divisors (2393673).

3989415 is a wasteful number, since it uses less digits than its factorization.

3989415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265969.

The product of its digits is 38880, while the sum is 39.

The square root of 3989415 is about 1997.3519970201. The cubic root of 3989415 is about 158.5999595027.

The spelling of 3989415 in words is "three million, nine hundred eighty-nine thousand, four hundred fifteen".