3654543947 has 2 divisors, whose sum is σ = 3654543948. Its totient is φ = 3654543946.

The previous prime is 3654543931. The next prime is 3654544001. The reversal of 3654543947 is 7493454563.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3654543947 - 2⁴ = 3654543931 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3654543895 and 3654543904.

It is not a weakly prime, because it can be changed into another prime (3654543047) 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, 1827271973 + 1827271974.

It is an arithmetic number, because the mean of its divisors is an integer number (1827271974).

Almost surely, 2^3654543947 is an apocalyptic number.

3654543947 is a deficient number, since it is larger than the sum of its proper divisors (1).

3654543947 is an equidigital number, since it uses as much as digits as its factorization.

3654543947 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5443200, while the sum is 50.

The square root of 3654543947 is about 60452.8241441208. The cubic root of 3654543947 is about 1540.3203846547.

The spelling of 3654543947 in words is "three billion, six hundred fifty-four million, five hundred forty-three thousand, nine hundred forty-seven".