849542 has 4 divisors (see below), whose sum is σ = 1274316. Its totient is φ = 424770.

The previous prime is 849539. The next prime is 849571. The reversal of 849542 is 245948.

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

It is a junction number, because it is equal to n+sod(n) for n = 849499 and 849508.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 849542.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 212384 + ... + 212387.

It is an arithmetic number, because the mean of its divisors is an integer number (318579).

2⁸⁴⁹⁵⁴² is an apocalyptic number.

849542 is a deficient number, since it is larger than the sum of its proper divisors (424774).

849542 is a wasteful number, since it uses less digits than its factorization.

849542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 424773.

The product of its digits is 11520, while the sum is 32.

The square root of 849542 is about 921.7060268871. The cubic root of 849542 is about 94.7098069814.

The spelling of 849542 in words is "eight hundred forty-nine thousand, five hundred forty-two".