849354847 has 4 divisors (see below), whose sum is σ = 926568936. Its totient is φ = 772140760.

The previous prime is 849354841. The next prime is 849354859. The reversal of 849354847 is 748453948.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 849354847 - 2¹⁵ = 849322079 is a prime.

It is a super-2 number, since 2×849354847² = 1442807312244786818, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 849354794 and 849354803.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (849354841) 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, 38607028 + ... + 38607049.

It is an arithmetic number, because the mean of its divisors is an integer number (231642234).

Almost surely, 2^849354847 is an apocalyptic number.

849354847 is a deficient number, since it is larger than the sum of its proper divisors (77214089).

849354847 is a wasteful number, since it uses less digits than its factorization.

849354847 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77214088.

The product of its digits is 3870720, while the sum is 52.

The square root of 849354847 is about 29143.6930913019. The cubic root of 849354847 is about 947.0285165476.

The spelling of 849354847 in words is "eight hundred forty-nine million, three hundred fifty-four thousand, eight hundred forty-seven".