8720967 has 16 divisors (see below), whose sum is σ = 12240000. Its totient is φ = 5515104.

The previous prime is 8720953. The next prime is 8720969. The reversal of 8720967 is 7690278.

8720967 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 8720967 - 2⁷ = 8720839 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8720969) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4284 + ... + 5982.

It is an arithmetic number, because the mean of its divisors is an integer number (765000).

Almost surely, 2^8720967 is an apocalyptic number.

8720967 is a gapful number since it is divisible by the number (87) formed by its first and last digit.

8720967 is a deficient number, since it is larger than the sum of its proper divisors (3519033).

8720967 is a wasteful number, since it uses less digits than its factorization.

8720967 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1790.

The product of its (nonzero) digits is 42336, while the sum is 39.

The square root of 8720967 is about 2953.1283412680. The cubic root of 8720967 is about 205.8361014487.

The spelling of 8720967 in words is "eight million, seven hundred twenty thousand, nine hundred sixty-seven".