3989515 has 8 divisors (see below), whose sum is σ = 4859280. Its totient is φ = 3143712.

The previous prime is 3989477. The next prime is 3989519. The reversal of 3989515 is 5159893.

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 3989515 - 2⁷ = 3989387 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3989519) 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, 5620 + ... + 6289.

It is an arithmetic number, because the mean of its divisors is an integer number (607410).

Almost surely, 2^3989515 is an apocalyptic number.

3989515 is a deficient number, since it is larger than the sum of its proper divisors (869765).

3989515 is a wasteful number, since it uses less digits than its factorization.

3989515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11981.

The product of its digits is 48600, while the sum is 40.

The square root of 3989515 is about 1997.3770300071. The cubic root of 3989515 is about 158.6012846647.

The spelling of 3989515 in words is "three million, nine hundred eighty-nine thousand, five hundred fifteen".