3978076417 has 12 divisors (see below), whose sum is σ = 4871115120. Its totient is φ = 3230316936.

The previous prime is 3978076411. The next prime is 3978076441. The reversal of 3978076417 is 7146708793.

It is not a de Polignac number, because 3978076417 - 2¹¹ = 3978074369 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3978076411) 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 11 ways as a sum of consecutive naturals, for example, 2135523 + ... + 2137384.

It is an arithmetic number, because the mean of its divisors is an integer number (405926260).

Almost surely, 2^3978076417 is an apocalyptic number.

It is an amenable number.

3978076417 is a deficient number, since it is larger than the sum of its proper divisors (893038703).

3978076417 is a wasteful number, since it uses less digits than its factorization.

3978076417 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4272940 (or 4272933 counting only the distinct ones).

The product of its (nonzero) digits is 1778112, while the sum is 52.

The square root of 3978076417 is about 63071.9939196471. The cubic root of 3978076417 is about 1584.4956107854.

The spelling of 3978076417 in words is "three billion, nine hundred seventy-eight million, seventy-six thousand, four hundred seventeen".