79627987 has 2 divisors, whose sum is σ = 79627988. Its totient is φ = 79627986.

The previous prime is 79627981. The next prime is 79628023. The reversal of 79627987 is 78972697.

It is a weak prime.

It is an emirp because it is prime and its reverse (78972697) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 79627987 - 2¹¹ = 79625939 is a prime.

It is not a weakly prime, because it can be changed into another prime (79627981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39813993 + 39813994.

It is an arithmetic number, because the mean of its divisors is an integer number (39813994).

Almost surely, 2^79627987 is an apocalyptic number.

79627987 is a deficient number, since it is larger than the sum of its proper divisors (1).

79627987 is an equidigital number, since it uses as much as digits as its factorization.

79627987 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2667168, while the sum is 55.

The square root of 79627987 is about 8923.4515183308. The cubic root of 79627987 is about 430.2180019517.

The spelling of 79627987 in words is "seventy-nine million, six hundred twenty-seven thousand, nine hundred eighty-seven".