3864578 has 8 divisors (see below), whose sum is σ = 5938380. Its totient is φ = 1885120.

The previous prime is 3864557. The next prime is 3864583. The reversal of 3864578 is 8754683.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 2393209 + 1471369 = 1547^2 + 1213^2 .

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

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a Curzon number.

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, 23483 + ... + 23646.

Almost surely, 2^3864578 is an apocalyptic number.

3864578 is a deficient number, since it is larger than the sum of its proper divisors (2073802).

3864578 is a wasteful number, since it uses less digits than its factorization.

3864578 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47172.

The product of its digits is 161280, while the sum is 41.

The square root of 3864578 is about 1965.8529955213. The cubic root of 3864578 is about 156.9280912666.

The spelling of 3864578 in words is "three million, eight hundred sixty-four thousand, five hundred seventy-eight".