79381079 has 2 divisors, whose sum is σ = 79381080. Its totient is φ = 79381078.

The previous prime is 79381063. The next prime is 79381129. The reversal of 79381079 is 97018397.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 79381079 - 2⁴ = 79381063 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (79381039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39690539 + 39690540.

It is an arithmetic number, because the mean of its divisors is an integer number (39690540).

Almost surely, 2^79381079 is an apocalyptic number.

79381079 is a deficient number, since it is larger than the sum of its proper divisors (1).

79381079 is an equidigital number, since it uses as much as digits as its factorization.

79381079 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 95256, while the sum is 44.

The square root of 79381079 is about 8909.6059957778. The cubic root of 79381079 is about 429.7728726604.

The spelling of 79381079 in words is "seventy-nine million, three hundred eighty-one thousand, seventy-nine".