79328687 has 2 divisors, whose sum is σ = 79328688. Its totient is φ = 79328686.

The previous prime is 79328663. The next prime is 79328693. The reversal of 79328687 is 78682397.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (78682397) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 79328687 - 2¹⁰ = 79327663 is a prime.

It is a super-2 number, since 2×79328687² = 12586081162287938, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (79328657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39664343 + 39664344.

It is an arithmetic number, because the mean of its divisors is an integer number (39664344).

Almost surely, 2^79328687 is an apocalyptic number.

79328687 is a deficient number, since it is larger than the sum of its proper divisors (1).

79328687 is an equidigital number, since it uses as much as digits as its factorization.

79328687 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1016064, while the sum is 50.

The square root of 79328687 is about 8906.6653131236. The cubic root of 79328687 is about 429.6783009389.

The spelling of 79328687 in words is "seventy-nine million, three hundred twenty-eight thousand, six hundred eighty-seven".