828321361 has 4 divisors (see below), whose sum is σ = 946652992. Its totient is φ = 709989732.

The previous prime is 828321349. The next prime is 828321383. The reversal of 828321361 is 163123828.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 828321361 - 2⁷ = 828321233 is a prime.

It is a super-2 number, since 2×828321361² = 1372232554177784642, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (828322361) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59165805 + ... + 59165818.

It is an arithmetic number, because the mean of its divisors is an integer number (236663248).

Almost surely, 2^828321361 is an apocalyptic number.

It is an amenable number.

828321361 is a deficient number, since it is larger than the sum of its proper divisors (118331631).

828321361 is a wasteful number, since it uses less digits than its factorization.

828321361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118331630.

The product of its digits is 13824, while the sum is 34.

The square root of 828321361 is about 28780.5726315513. The cubic root of 828321361 is about 939.1456553841.

The spelling of 828321361 in words is "eight hundred twenty-eight million, three hundred twenty-one thousand, three hundred sixty-one".