79091107 has 2 divisors, whose sum is σ = 79091108. Its totient is φ = 79091106.

The previous prime is 79091101. The next prime is 79091141. The reversal of 79091107 is 70119097.

It is a happy number.

It is an a-pointer prime, because the next prime (79091141) can be obtained adding 79091107 to its sum of digits (34).

It is a weak prime.

It is an emirp because it is prime and its reverse (70119097) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-79091107 is a prime.

It is not a weakly prime, because it can be changed into another prime (79091101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39545553 + 39545554.

It is an arithmetic number, because the mean of its divisors is an integer number (39545554).

Almost surely, 2^79091107 is an apocalyptic number.

79091107 is a deficient number, since it is larger than the sum of its proper divisors (1).

79091107 is an equidigital number, since it uses as much as digits as its factorization.

79091107 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3969, while the sum is 34.

The square root of 79091107 is about 8893.3181096821. The cubic root of 79091107 is about 429.2489268445.

The spelling of 79091107 in words is "seventy-nine million, ninety-one thousand, one hundred seven".