849478 has 16 divisors (see below), whose sum is σ = 1488384. Its totient is φ = 356040.

The previous prime is 849467. The next prime is 849481. The reversal of 849478 is 874948.

It is a super-2 number, since 2×849478² = 1443225744968, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 849478.

It is a congruent number.

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 in 7 ways as a sum of consecutive naturals, for example, 13 + ... + 1303.

It is an arithmetic number, because the mean of its divisors is an integer number (93024).

2⁸⁴⁹⁴⁷⁸ is an apocalyptic number.

849478 is a deficient number, since it is larger than the sum of its proper divisors (638906).

849478 is a wasteful number, since it uses less digits than its factorization.

849478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1347.

The product of its digits is 64512, while the sum is 40.

The square root of 849478 is about 921.6713080052. The cubic root of 849478 is about 94.7074286097.

The spelling of 849478 in words is "eight hundred forty-nine thousand, four hundred seventy-eight".