849081 has 4 divisors (see below), whose sum is σ = 1132112. Its totient is φ = 566052.

The previous prime is 849061. The next prime is 849083. The reversal of 849081 is 180948.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 849081 - 2⁵ = 849049 is a prime.

It is a super-2 number, since 2×849081² = 1441877089122, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (849083) 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, 141511 + ... + 141516.

It is an arithmetic number, because the mean of its divisors is an integer number (283028).

2⁸⁴⁹⁰⁸¹ is an apocalyptic number.

It is an amenable number.

849081 is a deficient number, since it is larger than the sum of its proper divisors (283031).

849081 is a wasteful number, since it uses less digits than its factorization.

849081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 283030.

The product of its (nonzero) digits is 2304, while the sum is 30.

The square root of 849081 is about 921.4559132156. The cubic root of 849081 is about 94.6926726035.

The spelling of 849081 in words is "eight hundred forty-nine thousand, eighty-one".