3878697 has 16 divisors (see below), whose sum is σ = 5483520. Its totient is φ = 2433552.

The previous prime is 3878687. The next prime is 3878701. The reversal of 3878697 is 7968783.

It is not a de Polignac number, because 3878697 - 2⁴ = 3878681 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3878617) 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 15 ways as a sum of consecutive naturals, for example, 4204 + ... + 5042.

It is an arithmetic number, because the mean of its divisors is an integer number (342720).

Almost surely, 2^3878697 is an apocalyptic number.

It is an amenable number.

3878697 is a deficient number, since it is larger than the sum of its proper divisors (1604823).

3878697 is a wasteful number, since it uses less digits than its factorization.

3878697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 932.

The product of its digits is 508032, while the sum is 48.

The square root of 3878697 is about 1969.4407835728. The cubic root of 3878697 is about 157.1189680726.

Multiplying 3878697 by its sum of digits (48), we get a triangular number (186177456 = T₁₉₂₉₆).

It can be divided in two parts, 38786 and 97, that added together give a palindrome (38883).

The spelling of 3878697 in words is "three million, eight hundred seventy-eight thousand, six hundred ninety-seven".