8719997 has 24 divisors (see below), whose sum is σ = 10934112. Its totient is φ = 6854400.

The previous prime is 8719987. The next prime is 8719999. The reversal of 8719997 is 7999178.

8719997 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 8719997 - 2¹⁰ = 8718973 is a prime.

It is a Duffinian number.

Its product of digits (285768) is a multiple of the sum of its prime divisors (252).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8719999) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 41222 + ... + 41432.

It is an arithmetic number, because the mean of its divisors is an integer number (455588).

Almost surely, 2^8719997 is an apocalyptic number.

It is an amenable number.

8719997 is a deficient number, since it is larger than the sum of its proper divisors (2214115).

8719997 is a wasteful number, since it uses less digits than its factorization.

8719997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269 (or 252 counting only the distinct ones).

The product of its digits is 285768, while the sum is 50.

The square root of 8719997 is about 2952.9641040825. The cubic root of 8719997 is about 205.8284697101.

The spelling of 8719997 in words is "eight million, seven hundred nineteen thousand, nine hundred ninety-seven".