818073 has 16 divisors (see below), whose sum is σ = 1243200. Its totient is φ = 531360.

The previous prime is 818021. The next prime is 818093. The reversal of 818073 is 370818.

It is not a de Polignac number, because 818073 - 2⁹ = 817561 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (818093) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 738 + ... + 1476.

It is an arithmetic number, because the mean of its divisors is an integer number (77700).

2⁸¹⁸⁰⁷³ is an apocalyptic number.

It is an amenable number.

818073 is a deficient number, since it is larger than the sum of its proper divisors (425127).

818073 is a wasteful number, since it uses less digits than its factorization.

818073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 789 (or 783 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 27.

The square root of 818073 is about 904.4738802199. The cubic root of 818073 is about 93.5256394935.

It can be divided in two parts, 81807 and 3, that added together give a triangular number (81810 = T₄₀₄).

The spelling of 818073 in words is "eight hundred eighteen thousand, seventy-three".