8518919 has 4 divisors (see below), whose sum is σ = 8533344. Its totient is φ = 8504496.

The previous prime is 8518907. The next prime is 8518931. The reversal of 8518919 is 9198158.

8518919 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 a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (8518907) and next prime (8518931).

It is a cyclic number.

It is not a de Polignac number, because 8518919 - 2¹² = 8514823 is a prime.

It is a super-2 number, since 2×8518919² = 145143961857122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8518969) 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, 6287 + ... + 7520.

It is an arithmetic number, because the mean of its divisors is an integer number (2133336).

Almost surely, 2^8518919 is an apocalyptic number.

8518919 is a deficient number, since it is larger than the sum of its proper divisors (14425).

8518919 is a wasteful number, since it uses less digits than its factorization.

8518919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14424.

The product of its digits is 25920, while the sum is 41.

The square root of 8518919 is about 2918.7187257425. The cubic root of 8518919 is about 204.2340562955.

The spelling of 8518919 in words is "eight million, five hundred eighteen thousand, nine hundred nineteen".