3865538 has 8 divisors (see below), whose sum is σ = 5955132. Its totient is φ = 1880496.

The previous prime is 3865529. The next prime is 3865553. The reversal of 3865538 is 8355683.

It can be written as a sum of positive squares in 2 ways, for example, as 3751969 + 113569 = 1937^2 + 337^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26045 + ... + 26192.

Almost surely, 2^3865538 is an apocalyptic number.

3865538 is a deficient number, since it is larger than the sum of its proper divisors (2089594).

3865538 is a wasteful number, since it uses less digits than its factorization.

3865538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52276.

The product of its digits is 86400, while the sum is 38.

The square root of 3865538 is about 1966.0971491765. The cubic root of 3865538 is about 156.9410843623.

The spelling of 3865538 in words is "three million, eight hundred sixty-five thousand, five hundred thirty-eight".