3974574749 has 2 divisors, whose sum is σ = 3974574750. Its totient is φ = 3974574748.

The previous prime is 3974574733. The next prime is 3974574761. The reversal of 3974574749 is 9474754793.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3740178649 + 234396100 = 61157^2 + 15310^2 .

It is a cyclic number.

It is not a de Polignac number, because 3974574749 - 2⁴ = 3974574733 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3974574719) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1987287374 + 1987287375.

It is an arithmetic number, because the mean of its divisors is an integer number (1987287375).

Almost surely, 2^3974574749 is an apocalyptic number.

It is an amenable number.

3974574749 is a deficient number, since it is larger than the sum of its proper divisors (1).

3974574749 is an equidigital number, since it uses as much as digits as its factorization.

3974574749 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 26671680, while the sum is 59.

The square root of 3974574749 is about 63044.2285145912. The cubic root of 3974574749 is about 1584.0305613694.

The spelling of 3974574749 in words is "three billion, nine hundred seventy-four million, five hundred seventy-four thousand, seven hundred forty-nine".