8719491 has 16 divisors (see below), whose sum is σ = 12786048. Its totient is φ = 5241600.

The previous prime is 8719483. The next prime is 8719519. The reversal of 8719491 is 1949178.

It is a happy number.

It is not a de Polignac number, because 8719491 - 2³ = 8719483 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8719421) 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, 3315 + ... + 5331.

It is an arithmetic number, because the mean of its divisors is an integer number (799128).

Almost surely, 2^8719491 is an apocalyptic number.

8719491 is a deficient number, since it is larger than the sum of its proper divisors (4066557).

8719491 is a wasteful number, since it uses less digits than its factorization.

8719491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2162.

The product of its digits is 18144, while the sum is 39.

The square root of 8719491 is about 2952.8784262140. The cubic root of 8719491 is about 205.8244883930.

The spelling of 8719491 in words is "eight million, seven hundred nineteen thousand, four hundred ninety-one".