3868539 has 4 divisors (see below), whose sum is σ = 5158056. Its totient is φ = 2579024.

The previous prime is 3868517. The next prime is 3868541. The reversal of 3868539 is 9358683.

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

It is a cyclic number.

It is not a de Polignac number, because 3868539 - 2⁸ = 3868283 is a prime.

It is a D-number.

It is a self number, because there is not a number n which added to its sum of digits gives 3868539.

It is not an unprimeable number, because it can be changed into a prime (3868549) 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, 644754 + ... + 644759.

It is an arithmetic number, because the mean of its divisors is an integer number (1289514).

Almost surely, 2^3868539 is an apocalyptic number.

3868539 is a deficient number, since it is larger than the sum of its proper divisors (1289517).

3868539 is a wasteful number, since it uses less digits than its factorization.

3868539 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1289516.

The product of its digits is 155520, while the sum is 42.

The square root of 3868539 is about 1966.8601882188. The cubic root of 3868539 is about 156.9816874526.

The spelling of 3868539 in words is "three million, eight hundred sixty-eight thousand, five hundred thirty-nine".