3914778 has 32 divisors (see below), whose sum is σ = 9063936. Its totient is φ = 1104048.

The previous prime is 3914749. The next prime is 3914783. The reversal of 3914778 is 8774193.

It is a Curzon number.

It is an unprimeable number.

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, 2925 + ... + 4047.

It is an arithmetic number, because the mean of its divisors is an integer number (283248).

Almost surely, 2^3914778 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3914778, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4531968).

3914778 is an abundant number, since it is smaller than the sum of its proper divisors (5149158).

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

3914778 is a wasteful number, since it uses less digits than its factorization.

3914778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1218.

The product of its digits is 42336, while the sum is 39.

The square root of 3914778 is about 1978.5797936904. The cubic root of 3914778 is about 157.6046570725.

The spelling of 3914778 in words is "three million, nine hundred fourteen thousand, seven hundred seventy-eight".