849390 has 32 divisors (see below), whose sum is σ = 2128896. Its totient is φ = 216480.

The previous prime is 849383. The next prime is 849391. The reversal of 849390 is 93948.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (849391) by changing a digit.

849390 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 75 + ... + 1305.

It is an arithmetic number, because the mean of its divisors is an integer number (66528).

2⁸⁴⁹³⁹⁰ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 849390, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1064448).

849390 is an abundant number, since it is smaller than the sum of its proper divisors (1279506).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

849390 is a wasteful number, since it uses less digits than its factorization.

849390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1264.

The product of its (nonzero) digits is 7776, while the sum is 33.

The square root of 849390 is about 921.6235674070. The cubic root of 849390 is about 94.7041581536.

The spelling of 849390 in words is "eight hundred forty-nine thousand, three hundred ninety".