79119643 has 2 divisors, whose sum is σ = 79119644. Its totient is φ = 79119642.

The previous prime is 79119617. The next prime is 79119671. The reversal of 79119643 is 34691197.

It is a weak prime.

It is an emirp because it is prime and its reverse (34691197) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 79119643 - 2¹³ = 79111451 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 79119596 and 79119605.

It is not a weakly prime, because it can be changed into another prime (79119043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39559821 + 39559822.

It is an arithmetic number, because the mean of its divisors is an integer number (39559822).

Almost surely, 2^79119643 is an apocalyptic number.

79119643 is a deficient number, since it is larger than the sum of its proper divisors (1).

79119643 is an equidigital number, since it uses as much as digits as its factorization.

79119643 is an evil number, because the sum of its binary digits is even.

The product of its digits is 40824, while the sum is 40.

The square root of 79119643 is about 8894.9223155686. The cubic root of 79119643 is about 429.3005448455.

The spelling of 79119643 in words is "seventy-nine million, one hundred nineteen thousand, six hundred forty-three".