3862139 has 4 divisors (see below), whose sum is σ = 3900480. Its totient is φ = 3823800.

The previous prime is 3862121. The next prime is 3862141. The reversal of 3862139 is 9312683.

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 3862139 - 2¹⁶ = 3796603 is a prime.

It is a super-2 number, since 2×3862139² = 29832235310642, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3862109) 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, 19019 + ... + 19220.

It is an arithmetic number, because the mean of its divisors is an integer number (975120).

Almost surely, 2^3862139 is an apocalyptic number.

3862139 is a deficient number, since it is larger than the sum of its proper divisors (38341).

3862139 is a wasteful number, since it uses less digits than its factorization.

3862139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38340.

The product of its digits is 7776, while the sum is 32.

The square root of 3862139 is about 1965.2325562131. The cubic root of 3862139 is about 156.8950710022.

The spelling of 3862139 in words is "three million, eight hundred sixty-two thousand, one hundred thirty-nine".