537947369 has 4 divisors (see below), whose sum is σ = 538706820. Its totient is φ = 537187920.

The previous prime is 537947359. The next prime is 537947381. The reversal of 537947369 is 963749735.

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 361456144 + 176491225 = 19012^2 + 13285^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-537947369 is a prime.

It is a super-2 number, since 2×537947369² = 578774743628044322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 537947369.

It is not an unprimeable number, because it can be changed into a prime (537947359) 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, 378662 + ... + 380079.

It is an arithmetic number, because the mean of its divisors is an integer number (134676705).

Almost surely, 2^537947369 is an apocalyptic number.

It is an amenable number.

537947369 is a deficient number, since it is larger than the sum of its proper divisors (759451).

537947369 is an equidigital number, since it uses as much as digits as its factorization.

537947369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 759450.

The product of its digits is 4286520, while the sum is 53.

The square root of 537947369 is about 23193.6924399717. The cubic root of 537947369 is about 813.2921789883.

The spelling of 537947369 in words is "five hundred thirty-seven million, nine hundred forty-seven thousand, three hundred sixty-nine".