8719969 has 4 divisors (see below), whose sum is σ = 8759296. Its totient is φ = 8680644.

The previous prime is 8719961. The next prime is 8719987. The reversal of 8719969 is 9699178.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9699178 = 2 ⋅4849589.

It is a cyclic number.

It is not a de Polignac number, because 8719969 - 2³ = 8719961 is a prime.

It is a super-2 number, since 2×8719969² = 152075718721922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8719961) 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, 19329 + ... + 19774.

It is an arithmetic number, because the mean of its divisors is an integer number (2189824).

Almost surely, 2^8719969 is an apocalyptic number.

It is an amenable number.

8719969 is a deficient number, since it is larger than the sum of its proper divisors (39327).

8719969 is a wasteful number, since it uses less digits than its factorization.

8719969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39326.

The product of its digits is 244944, while the sum is 49.

The square root of 8719969 is about 2952.9593630797. The cubic root of 8719969 is about 205.8282494041.

The spelling of 8719969 in words is "eight million, seven hundred nineteen thousand, nine hundred sixty-nine".