849896459 has 4 divisors (see below), whose sum is σ = 849979104. Its totient is φ = 849813816.

The previous prime is 849896449. The next prime is 849896461. The reversal of 849896459 is 954698948.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-849896459 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (849896449) 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, 23267 + ... + 47340.

It is an arithmetic number, because the mean of its divisors is an integer number (212494776).

Almost surely, 2^849896459 is an apocalyptic number.

849896459 is a deficient number, since it is larger than the sum of its proper divisors (82645).

849896459 is a wasteful number, since it uses less digits than its factorization.

849896459 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82644.

The product of its digits is 22394880, while the sum is 62.

The square root of 849896459 is about 29152.9837066466. The cubic root of 849896459 is about 947.2297724473.

The spelling of 849896459 in words is "eight hundred forty-nine million, eight hundred ninety-six thousand, four hundred fifty-nine".