80687967 has 8 divisors (see below), whose sum is σ = 113912496. Its totient is φ = 50627712.

The previous prime is 80687953. The next prime is 80687969. The reversal of 80687967 is 76978608.

It is a happy number.

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

It is not a de Polignac number, because 80687967 - 2⁷ = 80687839 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51), and also a Moran number because the ratio is a prime number: 1582117 = 80687967 / (8 + 0 + 6 + 8 + 7 + 9 + 6 + 7).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80687969) 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 in 7 ways as a sum of consecutive naturals, for example, 791008 + ... + 791109.

It is an arithmetic number, because the mean of its divisors is an integer number (14239062).

Almost surely, 2^80687967 is an apocalyptic number.

80687967 is a deficient number, since it is larger than the sum of its proper divisors (33224529).

80687967 is a wasteful number, since it uses less digits than its factorization.

80687967 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1582137.

The product of its (nonzero) digits is 1016064, while the sum is 51.

The square root of 80687967 is about 8982.6481062101. The cubic root of 80687967 is about 432.1185642073.

The spelling of 80687967 in words is "eighty million, six hundred eighty-seven thousand, nine hundred sixty-seven".