849689929 has 4 divisors (see below), whose sum is σ = 926934480. Its totient is φ = 772445380.

The previous prime is 849689927. The next prime is 849689947. The reversal of 849689929 is 929986948.

849689929 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, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 849689929 - 2¹ = 849689927 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (849689921) 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, 38622259 + ... + 38622280.

It is an arithmetic number, because the mean of its divisors is an integer number (231733620).

Almost surely, 2^849689929 is an apocalyptic number.

It is an amenable number.

849689929 is a deficient number, since it is larger than the sum of its proper divisors (77244551).

849689929 is a wasteful number, since it uses less digits than its factorization.

849689929 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77244550.

The product of its digits is 20155392, while the sum is 64.

The square root of 849689929 is about 29149.4413154009. The cubic root of 849689929 is about 947.1530387027.

The spelling of 849689929 in words is "eight hundred forty-nine million, six hundred eighty-nine thousand, nine hundred twenty-nine".