3878479 has 4 divisors (see below), whose sum is σ = 4231080. Its totient is φ = 3525880.

The previous prime is 3878449. The next prime is 3878491. The reversal of 3878479 is 9748783.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3878479 - 2⁵ = 3878447 is a prime.

It is a Duffinian number.

3878479 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3878449) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 176284 + ... + 176305.

It is an arithmetic number, because the mean of its divisors is an integer number (1057770).

Almost surely, 2^3878479 is an apocalyptic number.

3878479 is a deficient number, since it is larger than the sum of its proper divisors (352601).

3878479 is a wasteful number, since it uses less digits than its factorization.

3878479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 352600.

The product of its digits is 338688, while the sum is 46.

The square root of 3878479 is about 1969.3854371351. The cubic root of 3878479 is about 157.1160244228.

The spelling of 3878479 in words is "three million, eight hundred seventy-eight thousand, four hundred seventy-nine".