76947743 has 2 divisors, whose sum is σ = 76947744. Its totient is φ = 76947742.

The previous prime is 76947733. The next prime is 76947757. The reversal of 76947743 is 34774967.

It is a weak prime.

It is an emirp because it is prime and its reverse (34774967) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 76947743 - 2¹⁰ = 76946719 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (76947733) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38473871 + 38473872.

It is an arithmetic number, because the mean of its divisors is an integer number (38473872).

Almost surely, 2^76947743 is an apocalyptic number.

76947743 is a deficient number, since it is larger than the sum of its proper divisors (1).

76947743 is an equidigital number, since it uses as much as digits as its factorization.

76947743 is an evil number, because the sum of its binary digits is even.

The product of its digits is 889056, while the sum is 47.

The square root of 76947743 is about 8771.9862630991. The cubic root of 76947743 is about 425.3358231533.

The spelling of 76947743 in words is "seventy-six million, nine hundred forty-seven thousand, seven hundred forty-three".