825421334 has 4 divisors (see below), whose sum is σ = 1238132004. Its totient is φ = 412710666.

The previous prime is 825421327. The next prime is 825421339. The reversal of 825421334 is 433124528.

825421334 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a self number, because there is not a number n which added to its sum of digits gives 825421334.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (825421339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 206355332 + ... + 206355335.

It is an arithmetic number, because the mean of its divisors is an integer number (309533001).

Almost surely, 2^825421334 is an apocalyptic number.

825421334 is a deficient number, since it is larger than the sum of its proper divisors (412710670).

825421334 is a wasteful number, since it uses less digits than its factorization.

825421334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 412710669.

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

The square root of 825421334 is about 28730.1467799940. The cubic root of 825421334 is about 938.0483628984.

The spelling of 825421334 in words is "eight hundred twenty-five million, four hundred twenty-one thousand, three hundred thirty-four".