79707493 has 2 divisors, whose sum is σ = 79707494. Its totient is φ = 79707492.

The previous prime is 79707491. The next prime is 79707539. The reversal of 79707493 is 39470797.

It is an a-pointer prime, because the next prime (79707539) can be obtained adding 79707493 to its sum of digits (46).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 77141089 + 2566404 = 8783^2 + 1602^2 .

It is an emirp because it is prime and its reverse (39470797) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 79707493 - 2¹ = 79707491 is a prime.

Together with 79707491, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (79707491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39853746 + 39853747.

It is an arithmetic number, because the mean of its divisors is an integer number (39853747).

Almost surely, 2^79707493 is an apocalyptic number.

It is an amenable number.

79707493 is a deficient number, since it is larger than the sum of its proper divisors (1).

79707493 is an equidigital number, since it uses as much as digits as its factorization.

79707493 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 333396, while the sum is 46.

The square root of 79707493 is about 8927.9052974368. The cubic root of 79707493 is about 430.3611406306.

It can be divided in two parts, 79707 and 493, that added together give a triangular number (80200 = T₄₀₀).

The spelling of 79707493 in words is "seventy-nine million, seven hundred seven thousand, four hundred ninety-three".