8487919 has 4 divisors (see below), whose sum is σ = 9259560. Its totient is φ = 7716280.

The previous prime is 8487907. The next prime is 8487937. The reversal of 8487919 is 9197848.

It is a happy number.

8487919 is digitally balanced in base 2, because in such base 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 not a de Polignac number, because 8487919 - 2⁵ = 8487887 is a prime.

It is a super-2 number, since 2×8487919² = 144089537901122, 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 (8487949) 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, 385804 + ... + 385825.

It is an arithmetic number, because the mean of its divisors is an integer number (2314890).

Almost surely, 2^8487919 is an apocalyptic number.

8487919 is a deficient number, since it is larger than the sum of its proper divisors (771641).

8487919 is a wasteful number, since it uses less digits than its factorization.

8487919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 771640.

The product of its digits is 145152, while the sum is 46.

The square root of 8487919 is about 2913.4033363062. The cubic root of 8487919 is about 203.9860220462.

The spelling of 8487919 in words is "eight million, four hundred eighty-seven thousand, nine hundred nineteen".