8414889391 has 16 divisors (see below), whose sum is σ = 8753421600. Its totient is φ = 8082505728.

The previous prime is 8414889383. The next prime is 8414889397. The reversal of 8414889391 is 1939884148.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 8414889391 - 2³ = 8414889383 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8414889397) 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, 2530656 + ... + 2533978.

It is an arithmetic number, because the mean of its divisors is an integer number (547088850).

Almost surely, 2^8414889391 is an apocalyptic number.

8414889391 is a deficient number, since it is larger than the sum of its proper divisors (338532209).

8414889391 is a wasteful number, since it uses less digits than its factorization.

8414889391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4218.

The product of its digits is 1990656, while the sum is 55.

The square root of 8414889391 is about 91732.7062230260. The cubic root of 8414889391 is about 2033.9930779105.

The spelling of 8414889391 in words is "eight billion, four hundred fourteen million, eight hundred eighty-nine thousand, three hundred ninety-one".