7926397687 has 8 divisors (see below), whose sum is σ = 8539107696. Its totient is φ = 7314114432.

The previous prime is 7926397649. The next prime is 7926397709. The reversal of 7926397687 is 7867936297.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 7926397687 - 2⁷ = 7926397559 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7926397607) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67573 + ... + 142894.

It is an arithmetic number, because the mean of its divisors is an integer number (1067388462).

Almost surely, 2^7926397687 is an apocalyptic number.

7926397687 is a deficient number, since it is larger than the sum of its proper divisors (612710009).

7926397687 is a wasteful number, since it uses less digits than its factorization.

7926397687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213377.

The product of its digits is 48009024, while the sum is 64.

The square root of 7926397687 is about 89030.3189200174. The cubic root of 7926397687 is about 1993.8475671085.

The spelling of 7926397687 in words is "seven billion, nine hundred twenty-six million, three hundred ninety-seven thousand, six hundred eighty-seven".