252984447 has 6 divisors (see below), whose sum is σ = 365421992. Its totient is φ = 168656292.

The previous prime is 252984427. The next prime is 252984451. The reversal of 252984447 is 744489252.

252984447 is a `hidden beast` number, since 2 + 529 + 84 + 4 + 47 = 666.

It is not a de Polignac number, because 252984447 - 2¹⁴ = 252968063 is a prime.

It is a super-2 number, since 2×252984447² = 128002260847791618, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252984427) 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 in 5 ways as a sum of consecutive naturals, for example, 14054683 + ... + 14054700.

Almost surely, 2^252984447 is an apocalyptic number.

252984447 is a deficient number, since it is larger than the sum of its proper divisors (112437545).

252984447 is a wasteful number, since it uses less digits than its factorization.

252984447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28109389 (or 28109386 counting only the distinct ones).

The product of its digits is 645120, while the sum is 45.

The square root of 252984447 is about 15905.4848087067. The cubic root of 252984447 is about 632.4573938503.

The spelling of 252984447 in words is "two hundred fifty-two million, nine hundred eighty-four thousand, four hundred forty-seven".