3978082497 has 16 divisors (see below), whose sum is σ = 5585807360. Its totient is φ = 2511333072.

The previous prime is 3978082483. The next prime is 3978082517. The reversal of 3978082497 is 7942808793.

3978082497 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3978082497 - 2¹⁵ = 3978049729 is a prime.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3978082447) 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, 121188 + ... + 150474.

It is an arithmetic number, because the mean of its divisors is an integer number (349112960).

Almost surely, 2^3978082497 is an apocalyptic number.

It is an amenable number.

3978082497 is a deficient number, since it is larger than the sum of its proper divisors (1607724863).

3978082497 is a wasteful number, since it uses less digits than its factorization.

3978082497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31692.

The product of its (nonzero) digits is 6096384, while the sum is 57.

The square root of 3978082497 is about 63072.0421185171. The cubic root of 3978082497 is about 1584.4964180205.

The spelling of 3978082497 in words is "three billion, nine hundred seventy-eight million, eighty-two thousand, four hundred ninety-seven".