3858778 has 16 divisors (see below), whose sum is σ = 7216704. Its totient is φ = 1503360.

The previous prime is 3858763. The next prime is 3858781. The reversal of 3858778 is 8778583.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12375 + ... + 12682.

It is an arithmetic number, because the mean of its divisors is an integer number (451044).

Almost surely, 2^3858778 is an apocalyptic number.

3858778 is a deficient number, since it is larger than the sum of its proper divisors (3357926).

3858778 is a wasteful number, since it uses less digits than its factorization.

3858778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25077.

The product of its digits is 376320, while the sum is 46.

The square root of 3858778 is about 1964.3772550098. The cubic root of 3858778 is about 156.8495455068.

The spelling of 3858778 in words is "three million, eight hundred fifty-eight thousand, seven hundred seventy-eight".