3787878 has 32 divisors (see below), whose sum is σ = 8064000. Its totient is φ = 1182816.

The previous prime is 3787877. The next prime is 3787919. The reversal of 3787878 is 8787873.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3787877) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16875 + ... + 17097.

It is an arithmetic number, because the mean of its divisors is an integer number (252000).

Almost surely, 2^3787878 is an apocalyptic number.

3787878 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

3787878 is an abundant number, since it is smaller than the sum of its proper divisors (4276122).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3787878 is a wasteful number, since it uses less digits than its factorization.

3787878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 396.

The product of its digits is 526848, while the sum is 48.

The square root of 3787878 is about 1946.2471579941. The cubic root of 3787878 is about 155.8829661330.

It can be divided in two parts, 378 and 7878, that added together give a triangular number (8256 = T₁₂₈).

The spelling of 3787878 in words is "three million, seven hundred eighty-seven thousand, eight hundred seventy-eight".