823474 has 4 divisors (see below), whose sum is σ = 1235214. Its totient is φ = 411736.

The previous prime is 823457. The next prime is 823481. The reversal of 823474 is 474328.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 651249 + 172225 = 807^2 + 415^2 .

It is a nialpdrome in base 7.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 205867 + ... + 205870.

2⁸²³⁴⁷⁴ is an apocalyptic number.

823474 is a deficient number, since it is larger than the sum of its proper divisors (411740).

823474 is a wasteful number, since it uses less digits than its factorization.

823474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 411739.

The product of its digits is 5376, while the sum is 28.

The square root of 823474 is about 907.4546820641. The cubic root of 823474 is about 93.7310100796.

The spelling of 823474 in words is "eight hundred twenty-three thousand, four hundred seventy-four".