3867664243 has 2 divisors, whose sum is σ = 3867664244. Its totient is φ = 3867664242.

The previous prime is 3867664133. The next prime is 3867664249. The reversal of 3867664243 is 3424667683.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3867664243 - 2²⁹ = 3330793331 is a prime.

It is not a weakly prime, because it can be changed into another prime (3867664249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1933832121 + 1933832122.

It is an arithmetic number, because the mean of its divisors is an integer number (1933832122).

Almost surely, 2^3867664243 is an apocalyptic number.

3867664243 is a deficient number, since it is larger than the sum of its proper divisors (1).

3867664243 is an equidigital number, since it uses as much as digits as its factorization.

3867664243 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3483648, while the sum is 49.

The square root of 3867664243 is about 62190.5478589793. The cubic root of 3867664243 is about 1569.6985428752.

The spelling of 3867664243 in words is "three billion, eight hundred sixty-seven million, six hundred sixty-four thousand, two hundred forty-three".