3869878 has 8 divisors (see below), whose sum is σ = 5815368. Its totient is φ = 1931424.

The previous prime is 3869861. The next prime is 3869881. The reversal of 3869878 is 8789683.

It is a happy number.

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

It is a congruent 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, 51 + ... + 2782.

It is an arithmetic number, because the mean of its divisors is an integer number (726921).

Almost surely, 2^3869878 is an apocalyptic number.

3869878 is a deficient number, since it is larger than the sum of its proper divisors (1945490).

3869878 is a wasteful number, since it uses less digits than its factorization.

3869878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3518.

The product of its digits is 580608, while the sum is 49.

The square root of 3869878 is about 1967.2005490036. The cubic root of 3869878 is about 156.9997971518. Note that the first 3 decimals are identical.

The spelling of 3869878 in words is "three million, eight hundred sixty-nine thousand, eight hundred seventy-eight".