824147252 has 6 divisors (see below), whose sum is σ = 1442257698. Its totient is φ = 412073624.

The previous prime is 824147243. The next prime is 824147257. The reversal of 824147252 is 252741428.

It can be written as a sum of positive squares in only one way, i.e., 452583076 + 371564176 = 21274^2 + 19276^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (824147257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 103018403 + ... + 103018410.

It is an arithmetic number, because the mean of its divisors is an integer number (240376283).

Almost surely, 2^824147252 is an apocalyptic number.

It is an amenable number.

824147252 is a deficient number, since it is larger than the sum of its proper divisors (618110446).

824147252 is a wasteful number, since it uses less digits than its factorization.

824147252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206036817 (or 206036815 counting only the distinct ones).

The product of its digits is 35840, while the sum is 35.

The square root of 824147252 is about 28707.9649574817. The cubic root of 824147252 is about 937.5654717416.

The spelling of 824147252 in words is "eight hundred twenty-four million, one hundred forty-seven thousand, two hundred fifty-two".