761212643 has 2 divisors, whose sum is σ = 761212644. Its totient is φ = 761212642.

The previous prime is 761212609. The next prime is 761212649. The reversal of 761212643 is 346212167.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-761212643 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (761212649) 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, 380606321 + 380606322.

It is an arithmetic number, because the mean of its divisors is an integer number (380606322).

Almost surely, 2^761212643 is an apocalyptic number.

761212643 is a deficient number, since it is larger than the sum of its proper divisors (1).

761212643 is an equidigital number, since it uses as much as digits as its factorization.

761212643 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12096, while the sum is 32.

The square root of 761212643 is about 27590.0823304317. The cubic root of 761212643 is about 913.0656351185.

The spelling of 761212643 in words is "seven hundred sixty-one million, two hundred twelve thousand, six hundred forty-three".