79489723 has 2 divisors, whose sum is σ = 79489724. Its totient is φ = 79489722.

The previous prime is 79489703. The next prime is 79489733. The reversal of 79489723 is 32798497.

It is a strong prime.

It is an emirp because it is prime and its reverse (32798497) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 79489723 - 2⁵ = 79489691 is a prime.

It is a super-3 number, since 3×79489723³ (a number of 25 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (79489703) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39744861 + 39744862.

It is an arithmetic number, because the mean of its divisors is an integer number (39744862).

Almost surely, 2^79489723 is an apocalyptic number.

79489723 is a deficient number, since it is larger than the sum of its proper divisors (1).

79489723 is an equidigital number, since it uses as much as digits as its factorization.

79489723 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 762048, while the sum is 49.

The square root of 79489723 is about 8915.7009258947. The cubic root of 79489723 is about 429.9688511779.

It can be divided in two parts, 7948 and 9723, that added together give a palindrome (17671).

The spelling of 79489723 in words is "seventy-nine million, four hundred eighty-nine thousand, seven hundred twenty-three".