537891604 has 6 divisors (see below), whose sum is σ = 941310314. Its totient is φ = 268945800.

The previous prime is 537891589. The next prime is 537891631. The reversal of 537891604 is 406198735.

It can be written as a sum of positive squares in only one way, i.e., 510308100 + 27583504 = 22590^2 + 5252^2 .

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 67236447 + ... + 67236454.

Almost surely, 2^537891604 is an apocalyptic number.

It is an amenable number.

537891604 is a deficient number, since it is larger than the sum of its proper divisors (403418710).

537891604 is a wasteful number, since it uses less digits than its factorization.

537891604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134472905 (or 134472903 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 43.

The square root of 537891604 is about 23192.4902500788. The cubic root of 537891604 is about 813.2640753681.

The spelling of 537891604 in words is "five hundred thirty-seven million, eight hundred ninety-one thousand, six hundred four".