823453214 has 4 divisors (see below), whose sum is σ = 1235179824. Its totient is φ = 411726606.

The previous prime is 823453193. The next prime is 823453223. The reversal of 823453214 is 412354328.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 205863302 + ... + 205863305.

It is an arithmetic number, because the mean of its divisors is an integer number (308794956).

Almost surely, 2^823453214 is an apocalyptic number.

823453214 is a deficient number, since it is larger than the sum of its proper divisors (411726610).

823453214 is a wasteful number, since it uses less digits than its factorization.

823453214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 411726609.

The product of its digits is 23040, while the sum is 32.

The square root of 823453214 is about 28695.8745118527. The cubic root of 823453214 is about 937.3022142521.

The spelling of 823453214 in words is "eight hundred twenty-three million, four hundred fifty-three thousand, two hundred fourteen".