761648443 has 2 divisors, whose sum is σ = 761648444. Its totient is φ = 761648442.

The previous prime is 761648387. The next prime is 761648449. The reversal of 761648443 is 344846167.

It is a strong prime.

It is an emirp because it is prime and its reverse (344846167) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-761648443 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 761648443.

It is not a weakly prime, because it can be changed into another prime (761648449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 380824221 + 380824222.

It is an arithmetic number, because the mean of its divisors is an integer number (380824222).

Almost surely, 2^761648443 is an apocalyptic number.

761648443 is a deficient number, since it is larger than the sum of its proper divisors (1).

761648443 is an equidigital number, since it uses as much as digits as its factorization.

761648443 is an evil number, because the sum of its binary digits is even.

The product of its digits is 387072, while the sum is 43.

The square root of 761648443 is about 27597.9789658591. The cubic root of 761648443 is about 913.2398475392.

The spelling of 761648443 in words is "seven hundred sixty-one million, six hundred forty-eight thousand, four hundred forty-three".