79907 has 2 divisors, whose sum is σ = 79908. Its totient is φ = 79906.

The previous prime is 79903. The next prime is 79939. The reversal of 79907 is 70997.

It is an a-pointer prime, because the next prime (79939) can be obtained adding 79907 to its sum of digits (32).

It is a weak prime.

It is an emirp because it is prime and its reverse (70997) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 79907 - 2² = 79903 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (79901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39953 + 39954.

It is an arithmetic number, because the mean of its divisors is an integer number (39954).

2⁷⁹⁹⁰⁷ is an apocalyptic number.

79907 is a deficient number, since it is larger than the sum of its proper divisors (1).

79907 is an equidigital number, since it uses as much as digits as its factorization.

79907 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 32.

The square root of 79907 is about 282.6782623408. The cubic root of 79907 is about 43.0719904576.

It can be divided in two parts, 7990 and 7, that added together give a palindrome (7997).

The spelling of 79907 in words is "seventy-nine thousand, nine hundred seven".