3865388 has 6 divisors (see below), whose sum is σ = 6764436. Its totient is φ = 1932692.

The previous prime is 3865363. The next prime is 3865429. The reversal of 3865388 is 8835683.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 483170 + ... + 483177.

It is an arithmetic number, because the mean of its divisors is an integer number (1127406).

Almost surely, 2^3865388 is an apocalyptic number.

It is an amenable number.

3865388 is a deficient number, since it is larger than the sum of its proper divisors (2899048).

3865388 is a wasteful number, since it uses less digits than its factorization.

3865388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 966351 (or 966349 counting only the distinct ones).

The product of its digits is 138240, while the sum is 41.

The square root of 3865388 is about 1966.0590021665. The cubic root of 3865388 is about 156.9390543329.

The spelling of 3865388 in words is "three million, eight hundred sixty-five thousand, three hundred eighty-eight".