79478743 has 2 divisors, whose sum is σ = 79478744. Its totient is φ = 79478742.

The previous prime is 79478713. The next prime is 79478771. The reversal of 79478743 is 34787497.

It is a strong prime.

It is an emirp because it is prime and its reverse (34787497) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-79478743 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (79478713) 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, 39739371 + 39739372.

It is an arithmetic number, because the mean of its divisors is an integer number (39739372).

Almost surely, 2^79478743 is an apocalyptic number.

79478743 is a deficient number, since it is larger than the sum of its proper divisors (1).

79478743 is an equidigital number, since it uses as much as digits as its factorization.

79478743 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1185408, while the sum is 49.

The square root of 79478743 is about 8915.0851370023. The cubic root of 79478743 is about 429.9490529147.

The spelling of 79478743 in words is "seventy-nine million, four hundred seventy-eight thousand, seven hundred forty-three".