3764639947 has 2 divisors, whose sum is σ = 3764639948. Its totient is φ = 3764639946.

The previous prime is 3764639939. The next prime is 3764640001. The reversal of 3764639947 is 7499364673.

3764639947 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3764639947 - 2³ = 3764639939 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3764639891 and 3764639900.

It is not a weakly prime, because it can be changed into another prime (3764639927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1882319973 + 1882319974.

It is an arithmetic number, because the mean of its divisors is an integer number (1882319974).

Almost surely, 2^3764639947 is an apocalyptic number.

3764639947 is a deficient number, since it is larger than the sum of its proper divisors (1).

3764639947 is an equidigital number, since it uses as much as digits as its factorization.

3764639947 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20575296, while the sum is 58.

The square root of 3764639947 is about 61356.6617980477. The cubic root of 3764639947 is about 1555.6353929853.

The spelling of 3764639947 in words is "three billion, seven hundred sixty-four million, six hundred thirty-nine thousand, nine hundred forty-seven".