3147428329 has 2 divisors, whose sum is σ = 3147428330. Its totient is φ = 3147428328.

The previous prime is 3147428311. The next prime is 3147428351. The reversal of 3147428329 is 9238247413.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2686037929 + 461390400 = 51827^2 + 21480^2 .

It is a cyclic number.

It is not a de Polignac number, because 3147428329 - 2⁷ = 3147428201 is a prime.

It is not a weakly prime, because it can be changed into another prime (3147422329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1573714164 + 1573714165.

It is an arithmetic number, because the mean of its divisors is an integer number (1573714165).

Almost surely, 2^3147428329 is an apocalyptic number.

It is an amenable number.

3147428329 is a deficient number, since it is larger than the sum of its proper divisors (1).

3147428329 is an equidigital number, since it uses as much as digits as its factorization.

3147428329 is an evil number, because the sum of its binary digits is even.

The product of its digits is 290304, while the sum is 43.

The square root of 3147428329 is about 56101.9458575191. The cubic root of 3147428329 is about 1465.4981790686.

The spelling of 3147428329 in words is "three billion, one hundred forty-seven million, four hundred twenty-eight thousand, three hundred twenty-nine".