573967381 has 4 divisors (see below), whose sum is σ = 618118732. Its totient is φ = 529816032.

The previous prime is 573967363. The next prime is 573967393. The reversal of 573967381 is 183769375.

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

It can be written as a sum of positive squares in 2 ways, for example, as 181333156 + 392634225 = 13466^2 + 19815^2 .

It is a cyclic number.

It is not a de Polignac number, because 573967381 - 2⁵ = 573967349 is a prime.

It is a super-2 number, since 2×573967381² = 658877108903998322, 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 (573967321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22075656 + ... + 22075681.

It is an arithmetic number, because the mean of its divisors is an integer number (154529683).

Almost surely, 2^573967381 is an apocalyptic number.

It is an amenable number.

573967381 is a deficient number, since it is larger than the sum of its proper divisors (44151351).

573967381 is a wasteful number, since it uses less digits than its factorization.

573967381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44151350.

The product of its digits is 952560, while the sum is 49.

The square root of 573967381 is about 23957.6163463730. The cubic root of 573967381 is about 831.0536678726.

The spelling of 573967381 in words is "five hundred seventy-three million, nine hundred sixty-seven thousand, three hundred eighty-one".