3978414807 has 8 divisors (see below), whose sum is σ = 5583740160. Its totient is φ = 2512683000.

The previous prime is 3978414773. The next prime is 3978414863. The reversal of 3978414807 is 7084148793.

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

It is not a de Polignac number, because 3978414807 - 2¹⁸ = 3978152663 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3978414807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3978414877) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34898319 + ... + 34898432.

It is an arithmetic number, because the mean of its divisors is an integer number (697967520).

Almost surely, 2^3978414807 is an apocalyptic number.

3978414807 is a deficient number, since it is larger than the sum of its proper divisors (1605325353).

3978414807 is a wasteful number, since it uses less digits than its factorization.

3978414807 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69796773.

The product of its (nonzero) digits is 1354752, while the sum is 51.

The square root of 3978414807 is about 63074.6764319881. The cubic root of 3978414807 is about 1584.5405372114.

The spelling of 3978414807 in words is "three billion, nine hundred seventy-eight million, four hundred fourteen thousand, eight hundred seven".