839724484 has 9 divisors (see below), whose sum is σ = 1469619277. Its totient is φ = 419833264.

The previous prime is 839724463. The next prime is 839724491. The reversal of 839724484 is 484427938.

It is a happy number.

The square root of 839724484 is 28978.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 121484484 + 718240000 = 11022^2 + 26800^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 50712 + ... + 65200.

Almost surely, 2^839724484 is an apocalyptic number.

839724484 is the 28978-th square number.

It is an amenable number.

839724484 is a deficient number, since it is larger than the sum of its proper divisors (629894793).

839724484 is an frugal number, since it uses more digits than its factorization.

839724484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28982 (or 14491 counting only the distinct ones).

The product of its digits is 1548288, while the sum is 49.

The cubic root of 839724484 is about 943.4356260387.

Multiplying 839724484 by its sum of digits (49), we get a square (41146499716 = 202846²).

The spelling of 839724484 in words is "eight hundred thirty-nine million, seven hundred twenty-four thousand, four hundred eighty-four".