3947574229 has 2 divisors, whose sum is σ = 3947574230. Its totient is φ = 3947574228.

The previous prime is 3947574209. The next prime is 3947574269. The reversal of 3947574229 is 9224757493.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3612611025 + 334963204 = 60105^2 + 18302^2 .

It is a cyclic number.

It is not a de Polignac number, because 3947574229 - 2²¹ = 3945477077 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3947574209) 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, 1973787114 + 1973787115.

It is an arithmetic number, because the mean of its divisors is an integer number (1973787115).

Almost surely, 2^3947574229 is an apocalyptic number.

It is an amenable number.

3947574229 is a deficient number, since it is larger than the sum of its proper divisors (1).

3947574229 is an equidigital number, since it uses as much as digits as its factorization.

3947574229 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3810240, while the sum is 52.

The square root of 3947574229 is about 62829.7240882053. The cubic root of 3947574229 is about 1580.4354710847.

The spelling of 3947574229 in words is "three billion, nine hundred forty-seven million, five hundred seventy-four thousand, two hundred twenty-nine".