8376994489 has 4 divisors (see below), whose sum is σ = 8404281424. Its totient is φ = 8349707556.

The previous prime is 8376994481. The next prime is 8376994501. The reversal of 8376994489 is 9844996738.

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: 9844996738 = 2 ⋅4922498369.

It is a cyclic number.

It is not a de Polignac number, because 8376994489 - 2³ = 8376994481 is a prime.

It is a super-2 number, since 2×8376994489² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8376994481) 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, 13643007 + ... + 13643620.

It is an arithmetic number, because the mean of its divisors is an integer number (2101070356).

Almost surely, 2^8376994489 is an apocalyptic number.

It is an amenable number.

8376994489 is a deficient number, since it is larger than the sum of its proper divisors (27286935).

8376994489 is a wasteful number, since it uses less digits than its factorization.

8376994489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27286934.

The product of its digits is 94058496, while the sum is 67.

The square root of 8376994489 is about 91525.9224973996. The cubic root of 8376994489 is about 2030.9352456465.

The spelling of 8376994489 in words is "eight billion, three hundred seventy-six million, nine hundred ninety-four thousand, four hundred eighty-nine".