818049 has 4 divisors (see below), whose sum is σ = 1090736. Its totient is φ = 545364.

The previous prime is 818021. The next prime is 818093. The reversal of 818049 is 940818.

It is a happy number.

818049 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 818049 - 2⁵ = 818017 is a prime.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (818099) 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, 136339 + ... + 136344.

It is an arithmetic number, because the mean of its divisors is an integer number (272684).

2⁸¹⁸⁰⁴⁹ is an apocalyptic number.

It is an amenable number.

818049 is a deficient number, since it is larger than the sum of its proper divisors (272687).

818049 is a wasteful number, since it uses less digits than its factorization.

818049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272686.

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

The square root of 818049 is about 904.4606127411. The cubic root of 818049 is about 93.5247248900.

The spelling of 818049 in words is "eight hundred eighteen thousand, forty-nine".