3989087 has 4 divisors (see below), whose sum is σ = 4027920. Its totient is φ = 3950256.

The previous prime is 3989057. The next prime is 3989093. The reversal of 3989087 is 7809893.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 3989087 - 2⁶ = 3989023 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3989057) 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, 19262 + ... + 19467.

It is an arithmetic number, because the mean of its divisors is an integer number (1006980).

Almost surely, 2^3989087 is an apocalyptic number.

3989087 is a deficient number, since it is larger than the sum of its proper divisors (38833).

3989087 is a wasteful number, since it uses less digits than its factorization.

3989087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38832.

The product of its (nonzero) digits is 108864, while the sum is 44.

The square root of 3989087 is about 1997.2698866202. The cubic root of 3989087 is about 158.5956128159.

The spelling of 3989087 in words is "three million, nine hundred eighty-nine thousand, eighty-seven".