611961743 has 2 divisors, whose sum is σ = 611961744. Its totient is φ = 611961742.

The previous prime is 611961703. The next prime is 611961781. The reversal of 611961743 is 347169116.

It is a happy number.

It is an a-pointer prime, because the next prime (611961781) can be obtained adding 611961743 to its sum of digits (38).

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-611961743 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 611961697 and 611961706.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (611961703) 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, 305980871 + 305980872.

It is an arithmetic number, because the mean of its divisors is an integer number (305980872).

Almost surely, 2^611961743 is an apocalyptic number.

611961743 is a deficient number, since it is larger than the sum of its proper divisors (1).

611961743 is an equidigital number, since it uses as much as digits as its factorization.

611961743 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 27216, while the sum is 38.

The square root of 611961743 is about 24737.8605178378. The cubic root of 611961743 is about 849.0007833870. Note that the first 3 decimals are identical.

The spelling of 611961743 in words is "six hundred eleven million, nine hundred sixty-one thousand, seven hundred forty-three".