537621992 has 16 divisors (see below), whose sum is σ = 1008287460. Its totient is φ = 268745344.

The previous prime is 537621989. The next prime is 537622009. The reversal of 537621992 is 299126735.

It can be written as a sum of positive squares in 2 ways, for example, as 502028836 + 35593156 = 22406^2 + 5966^2 .

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 3 ways as a sum of consecutive naturals, for example, 58238 + ... + 66834.

Almost surely, 2^537621992 is an apocalyptic number.

It is an amenable number.

537621992 is a deficient number, since it is larger than the sum of its proper divisors (470665468).

537621992 is a wasteful number, since it uses less digits than its factorization.

537621992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16420 (or 16416 counting only the distinct ones).

The product of its digits is 204120, while the sum is 44.

The square root of 537621992 is about 23186.6770366088. The cubic root of 537621992 is about 813.1281728943.

The spelling of 537621992 in words is "five hundred thirty-seven million, six hundred twenty-one thousand, nine hundred ninety-two".