3878747 has 4 divisors (see below), whose sum is σ = 3983616. Its totient is φ = 3773880.

The previous prime is 3878741. The next prime is 3878753. The reversal of 3878747 is 7478783.

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

It is an interprime number because it is at equal distance from previous prime (3878741) and next prime (3878753).

It is a cyclic number.

It is not a de Polignac number, because 3878747 - 2⁸ = 3878491 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3878698 and 3878707.

It is not an unprimeable number, because it can be changed into a prime (3878741) 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, 52379 + ... + 52452.

It is an arithmetic number, because the mean of its divisors is an integer number (995904).

Almost surely, 2^3878747 is an apocalyptic number.

3878747 is a gapful number since it is divisible by the number (37) formed by its first and last digit.

3878747 is a deficient number, since it is larger than the sum of its proper divisors (104869).

3878747 is a wasteful number, since it uses less digits than its factorization.

3878747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104868.

The product of its digits is 263424, while the sum is 44.

The square root of 3878747 is about 1969.4534774906. The cubic root of 3878747 is about 157.1196432061.

The spelling of 3878747 in words is "three million, eight hundred seventy-eight thousand, seven hundred forty-seven".