761949871 has 2 divisors, whose sum is σ = 761949872. Its totient is φ = 761949870.

The previous prime is 761949829. The next prime is 761949883. The reversal of 761949871 is 178949167.

It is a strong prime.

It is an emirp because it is prime and its reverse (178949167) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 761949871 - 2⁷ = 761949743 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (761949971) 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, 380974935 + 380974936.

It is an arithmetic number, because the mean of its divisors is an integer number (380974936).

Almost surely, 2^761949871 is an apocalyptic number.

761949871 is a deficient number, since it is larger than the sum of its proper divisors (1).

761949871 is an equidigital number, since it uses as much as digits as its factorization.

761949871 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 762048, while the sum is 52.

The square root of 761949871 is about 27603.4394777173. The cubic root of 761949871 is about 913.3603054561.

The spelling of 761949871 in words is "seven hundred sixty-one million, nine hundred forty-nine thousand, eight hundred seventy-one".