79941739 has 2 divisors, whose sum is σ = 79941740. Its totient is φ = 79941738.

The previous prime is 79941707. The next prime is 79941751. The reversal of 79941739 is 93714997.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (93714997) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 79941739 - 2⁵ = 79941707 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 79941692 and 79941701.

It is not a weakly prime, because it can be changed into another prime (79942739) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39970869 + 39970870.

It is an arithmetic number, because the mean of its divisors is an integer number (39970870).

Almost surely, 2^79941739 is an apocalyptic number.

79941739 is a deficient number, since it is larger than the sum of its proper divisors (1).

79941739 is an equidigital number, since it uses as much as digits as its factorization.

79941739 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 428652, while the sum is 49.

The square root of 79941739 is about 8941.0144279047. The cubic root of 79941739 is about 430.7823130045.

Subtracting from 79941739 its sum of digits (49), we obtain a triangular number (79941690 = T₁₂₆₄₄).

The spelling of 79941739 in words is "seventy-nine million, nine hundred forty-one thousand, seven hundred thirty-nine".