847449 has 8 divisors (see below), whose sum is σ = 1255520. Its totient is φ = 564948.

The previous prime is 847423. The next prime is 847453. The reversal of 847449 is 944748.

It is not a de Polignac number, because 847449 - 2⁷ = 847321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (847499) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15667 + ... + 15720.

It is an arithmetic number, because the mean of its divisors is an integer number (156940).

2⁸⁴⁷⁴⁴⁹ is an apocalyptic number.

It is an amenable number.

847449 is a deficient number, since it is larger than the sum of its proper divisors (408071).

847449 is a wasteful number, since it uses less digits than its factorization.

847449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31396 (or 31390 counting only the distinct ones).

The product of its digits is 32256, while the sum is 36.

The square root of 847449 is about 920.5699321616. The cubic root of 847449 is about 94.6319647876.

It can be divided in two parts, 847 and 449, that added together give a 4-th power (1296 = 6⁴).

The spelling of 847449 in words is "eight hundred forty-seven thousand, four hundred forty-nine".