3491647543 has 2 divisors, whose sum is σ = 3491647544. Its totient is φ = 3491647542.

The previous prime is 3491647529. The next prime is 3491647547. The reversal of 3491647543 is 3457461943.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3491647543 - 2¹³ = 3491639351 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3491647493 and 3491647502.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3491647547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1745823771 + 1745823772.

It is an arithmetic number, because the mean of its divisors is an integer number (1745823772).

Almost surely, 2^3491647543 is an apocalyptic number.

3491647543 is a deficient number, since it is larger than the sum of its proper divisors (1).

3491647543 is an equidigital number, since it uses as much as digits as its factorization.

3491647543 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1088640, while the sum is 46.

The square root of 3491647543 is about 59090.1645199944. The cubic root of 3491647543 is about 1517.0857630261.

The spelling of 3491647543 in words is "three billion, four hundred ninety-one million, six hundred forty-seven thousand, five hundred forty-three".