78966743 has 2 divisors, whose sum is σ = 78966744. Its totient is φ = 78966742.

The previous prime is 78966737. The next prime is 78966799. The reversal of 78966743 is 34766987.

It is a weak prime.

It is an emirp because it is prime and its reverse (34766987) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 78966743 - 2⁸ = 78966487 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 78966691 and 78966700.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (78966733) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39483371 + 39483372.

It is an arithmetic number, because the mean of its divisors is an integer number (39483372).

Almost surely, 2^78966743 is an apocalyptic number.

78966743 is a deficient number, since it is larger than the sum of its proper divisors (1).

78966743 is an equidigital number, since it uses as much as digits as its factorization.

78966743 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1524096, while the sum is 50.

The square root of 78966743 is about 8886.3233679627. The cubic root of 78966743 is about 429.0238230785.

The spelling of 78966743 in words is "seventy-eight million, nine hundred sixty-six thousand, seven hundred forty-three".