3971797579 has 2 divisors, whose sum is σ = 3971797580. Its totient is φ = 3971797578.

The previous prime is 3971797559. The next prime is 3971797607. The reversal of 3971797579 is 9757971793.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3971797579 - 2⁵ = 3971797547 is a prime.

It is a super-2 number, since 2×3971797579² = 31550352017100522482, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 3971797579.

It is not a weakly prime, because it can be changed into another prime (3971797519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1985898789 + 1985898790.

It is an arithmetic number, because the mean of its divisors is an integer number (1985898790).

Almost surely, 2^3971797579 is an apocalyptic number.

3971797579 is a deficient number, since it is larger than the sum of its proper divisors (1).

3971797579 is an equidigital number, since it uses as much as digits as its factorization.

3971797579 is an evil number, because the sum of its binary digits is even.

The product of its digits is 26254935, while the sum is 64.

The square root of 3971797579 is about 63022.1990968262. The cubic root of 3971797579 is about 1583.6615368041.

The spelling of 3971797579 in words is "three billion, nine hundred seventy-one million, seven hundred ninety-seven thousand, five hundred seventy-nine".