79345687 has 2 divisors, whose sum is σ = 79345688. Its totient is φ = 79345686.

The previous prime is 79345667. The next prime is 79345697. The reversal of 79345687 is 78654397.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (78654397) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 79345687 - 2¹⁹ = 78821399 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 79345687.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (79345627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39672843 + 39672844.

It is an arithmetic number, because the mean of its divisors is an integer number (39672844).

Almost surely, 2^79345687 is an apocalyptic number.

79345687 is a deficient number, since it is larger than the sum of its proper divisors (1).

79345687 is an equidigital number, since it uses as much as digits as its factorization.

79345687 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1270080, while the sum is 49.

The square root of 79345687 is about 8907.6196034631. The cubic root of 79345687 is about 429.7089918515.

The spelling of 79345687 in words is "seventy-nine million, three hundred forty-five thousand, six hundred eighty-seven".