3874620647 has 2 divisors, whose sum is σ = 3874620648. Its totient is φ = 3874620646.

The previous prime is 3874620613. The next prime is 3874620697. The reversal of 3874620647 is 7460264783.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3874620647 - 2⁶ = 3874620583 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3874620697) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1937310323 + 1937310324.

It is an arithmetic number, because the mean of its divisors is an integer number (1937310324).

Almost surely, 2^3874620647 is an apocalyptic number.

3874620647 is a deficient number, since it is larger than the sum of its proper divisors (1).

3874620647 is an equidigital number, since it uses as much as digits as its factorization.

3874620647 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1354752, while the sum is 47.

The square root of 3874620647 is about 62246.4508787449. The cubic root of 3874620647 is about 1570.6390689456.

The spelling of 3874620647 in words is "three billion, eight hundred seventy-four million, six hundred twenty thousand, six hundred forty-seven".