79489759 has 2 divisors, whose sum is σ = 79489760. Its totient is φ = 79489758.

The previous prime is 79489741. The next prime is 79489763. The reversal of 79489759 is 95798497.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (95798497) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 79489759 - 2¹¹ = 79487711 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (79489789) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39744879 + 39744880.

It is an arithmetic number, because the mean of its divisors is an integer number (39744880).

Almost surely, 2^79489759 is an apocalyptic number.

79489759 is a deficient number, since it is larger than the sum of its proper divisors (1).

79489759 is an equidigital number, since it uses as much as digits as its factorization.

79489759 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5715360, while the sum is 58.

The square root of 79489759 is about 8915.7029448047. The cubic root of 79489759 is about 429.9689160873.

The spelling of 79489759 in words is "seventy-nine million, four hundred eighty-nine thousand, seven hundred fifty-nine".