8687722067 has 4 divisors (see below), whose sum is σ = 8987298720. Its totient is φ = 8388145416.

The previous prime is 8687722049. The next prime is 8687722139. The reversal of 8687722067 is 7602277868.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 8687722067 - 2⁸ = 8687721811 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8687722027) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 149788283 + ... + 149788340.

It is an arithmetic number, because the mean of its divisors is an integer number (2246824680).

Almost surely, 2^8687722067 is an apocalyptic number.

8687722067 is a deficient number, since it is larger than the sum of its proper divisors (299576653).

8687722067 is a wasteful number, since it uses less digits than its factorization.

8687722067 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 299576652.

The product of its (nonzero) digits is 3161088, while the sum is 53.

The square root of 8687722067 is about 93207.9506640930. The cubic root of 8687722067 is about 2055.7421454237.

The spelling of 8687722067 in words is "eight billion, six hundred eighty-seven million, seven hundred twenty-two thousand, sixty-seven".