537961636 has 9 divisors (see below), whose sum is σ = 941514049. Its totient is φ = 268957624.

The previous prime is 537961621. The next prime is 537961637. The reversal of 537961636 is 636169735.

The square root of 537961636 is 23194.

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., 473062500 + 64899136 = 21750^2 + 8056^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (537961637) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 40590 + ... + 52186.

Almost surely, 2^537961636 is an apocalyptic number.

537961636 is the 23194-th square number.

It is an amenable number.

537961636 is a deficient number, since it is larger than the sum of its proper divisors (403552413).

537961636 is an frugal number, since it uses more digits than its factorization.

537961636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23198 (or 11599 counting only the distinct ones).

The product of its digits is 612360, while the sum is 46.

The cubic root of 537961636 is about 813.2993687480.

The spelling of 537961636 in words is "five hundred thirty-seven million, nine hundred sixty-one thousand, six hundred thirty-six".