3878377 has 6 divisors (see below), whose sum is σ = 3987438. Its totient is φ = 3772224.

The previous prime is 3878359. The next prime is 3878389. The reversal of 3878377 is 7738783.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 1971216 + 1907161 = 1404^2 + 1381^2 .

It is not a de Polignac number, because 3878377 - 2¹¹ = 3876329 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3878177) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 48 + ... + 2785.

It is an arithmetic number, because the mean of its divisors is an integer number (664573).

Almost surely, 2^3878377 is an apocalyptic number.

3878377 is a gapful number since it is divisible by the number (37) formed by its first and last digit.

It is an amenable number.

3878377 is a deficient number, since it is larger than the sum of its proper divisors (109061).

3878377 is an equidigital number, since it uses as much as digits as its factorization.

3878377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2907 (or 2870 counting only the distinct ones).

The product of its digits is 197568, while the sum is 43.

The square root of 3878377 is about 1969.3595405613. The cubic root of 3878377 is about 157.1146470809.

The spelling of 3878377 in words is "three million, eight hundred seventy-eight thousand, three hundred seventy-seven".