3978496802 has 16 divisors (see below), whose sum is σ = 6823180800. Its totient is φ = 1704344928.

The previous prime is 3978496793. The next prime is 3978496813. The reversal of 3978496802 is 2086948793.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25643 + ... + 92814.

It is an arithmetic number, because the mean of its divisors is an integer number (426448800).

Almost surely, 2^3978496802 is an apocalyptic number.

3978496802 is a deficient number, since it is larger than the sum of its proper divisors (2844683998).

3978496802 is a wasteful number, since it uses less digits than its factorization.

3978496802 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120865.

The product of its (nonzero) digits is 5225472, while the sum is 56.

The square root of 3978496802 is about 63075.3264121558. The cubic root of 3978496802 is about 1584.5514229130.

The spelling of 3978496802 in words is "three billion, nine hundred seventy-eight million, four hundred ninety-six thousand, eight hundred two".