3878737 has 8 divisors (see below), whose sum is σ = 4136832. Its totient is φ = 3624000.

The previous prime is 3878713. The next prime is 3878741. The reversal of 3878737 is 7378783.

It is a happy number.

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

It is a de Polignac number, because none of the positive numbers 2^k-3878737 is a prime.

It is a Duffinian number.

3878737 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 3878693 and 3878702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3878767) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1812 + ... + 3322.

It is an arithmetic number, because the mean of its divisors is an integer number (517104).

Almost surely, 2^3878737 is an apocalyptic number.

It is an amenable number.

3878737 is a deficient number, since it is larger than the sum of its proper divisors (258095).

3878737 is a wasteful number, since it uses less digits than its factorization.

3878737 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1679.

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

The square root of 3878737 is about 1969.4509387136. The cubic root of 3878737 is about 157.1195081798.

The spelling of 3878737 in words is "three million, eight hundred seventy-eight thousand, seven hundred thirty-seven".