3865413 has 8 divisors (see below), whose sum is σ = 5162976. Its totient is φ = 2572400.

The previous prime is 3865363. The next prime is 3865429. The reversal of 3865413 is 3145683.

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

It is a cyclic number.

It is not a de Polignac number, because 3865413 - 2⁶ = 3865349 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3865013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2683 + ... + 3863.

It is an arithmetic number, because the mean of its divisors is an integer number (645372).

Almost surely, 2^3865413 is an apocalyptic number.

It is an amenable number.

3865413 is a deficient number, since it is larger than the sum of its proper divisors (1297563).

3865413 is a wasteful number, since it uses less digits than its factorization.

3865413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2275.

The product of its digits is 8640, while the sum is 30.

The square root of 3865413 is about 1966.0653600529. The cubic root of 3865413 is about 156.9393926748.

It can be divided in two parts, 3865 and 413, that added together give a triangular number (4278 = T₉₂).

The spelling of 3865413 in words is "three million, eight hundred sixty-five thousand, four hundred thirteen".