823497 has 16 divisors (see below), whose sum is σ = 1184832. Its totient is φ = 506880.

The previous prime is 823489. The next prime is 823499. The reversal of 823497 is 794328.

It is not a de Polignac number, because 823497 - 2³ = 823489 is a prime.

It is not an unprimeable number, because it can be changed into a prime (823499) 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, 3297 + ... + 3537.

It is an arithmetic number, because the mean of its divisors is an integer number (74052).

2⁸²³⁴⁹⁷ is an apocalyptic number.

It is an amenable number.

823497 is a deficient number, since it is larger than the sum of its proper divisors (361335).

823497 is a wasteful number, since it uses less digits than its factorization.

823497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328.

The product of its digits is 12096, while the sum is 33.

The square root of 823497 is about 907.4673547847. The cubic root of 823497 is about 93.7318827213.

The spelling of 823497 in words is "eight hundred twenty-three thousand, four hundred ninety-seven".