3974913869 has 2 divisors, whose sum is σ = 3974913870. Its totient is φ = 3974913868.

The previous prime is 3974913863. The next prime is 3974913893. The reversal of 3974913869 is 9683194793.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3928155625 + 46758244 = 62675^2 + 6838^2 .

It is an emirp because it is prime and its reverse (9683194793) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3974913869 - 2¹² = 3974909773 is a prime.

It is a super-3 number, since 3×3974913869³ (a number of 30 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3974913863) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1987456934 + 1987456935.

It is an arithmetic number, because the mean of its divisors is an integer number (1987456935).

Almost surely, 2^3974913869 is an apocalyptic number.

It is an amenable number.

3974913869 is a deficient number, since it is larger than the sum of its proper divisors (1).

3974913869 is an equidigital number, since it uses as much as digits as its factorization.

3974913869 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8817984, while the sum is 59.

The square root of 3974913869 is about 63046.9179976309. The cubic root of 3974913869 is about 1584.0756111505.

The spelling of 3974913869 in words is "three billion, nine hundred seventy-four million, nine hundred thirteen thousand, eight hundred sixty-nine".