849437 has 4 divisors (see below), whose sum is σ = 857340. Its totient is φ = 841536.

The previous prime is 849427. The next prime is 849461. The reversal of 849437 is 734948.

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

It can be written as a sum of positive squares in 2 ways, for example, as 737881 + 111556 = 859^2 + 334^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-849437 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 849397 and 849406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (849427) 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, 3788 + ... + 4005.

It is an arithmetic number, because the mean of its divisors is an integer number (214335).

2⁸⁴⁹⁴³⁷ is an apocalyptic number.

It is an amenable number.

849437 is a deficient number, since it is larger than the sum of its proper divisors (7903).

849437 is a wasteful number, since it uses less digits than its factorization.

849437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7902.

The product of its digits is 24192, while the sum is 35.

The square root of 849437 is about 921.6490655342. The cubic root of 849437 is about 94.7059049026.

The spelling of 849437 in words is "eight hundred forty-nine thousand, four hundred thirty-seven".