821874314 has 4 divisors (see below), whose sum is σ = 1232811474. Its totient is φ = 410937156.

The previous prime is 821874311. The next prime is 821874343. The reversal of 821874314 is 413478128.

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., 417180625 + 404693689 = 20425^2 + 20117^2 .

It is not an unprimeable number, because it can be changed into a prime (821874311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 205468577 + ... + 205468580.

Almost surely, 2^821874314 is an apocalyptic number.

821874314 is a deficient number, since it is larger than the sum of its proper divisors (410937160).

821874314 is a wasteful number, since it uses less digits than its factorization.

821874314 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 410937159.

The product of its digits is 43008, while the sum is 38.

The square root of 821874314 is about 28668.3503885382. The cubic root of 821874314 is about 936.7027657694.

The spelling of 821874314 in words is "eight hundred twenty-one million, eight hundred seventy-four thousand, three hundred fourteen".