537986491 has 8 divisors (see below), whose sum is σ = 641574144. Its totient is φ = 441081960.

The previous prime is 537986447. The next prime is 537986507. The reversal of 537986491 is 194689735.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 537986491 - 2¹¹ = 537984443 is a prime.

It is not an unprimeable number, because it can be changed into a prime (537986441) 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 7 ways as a sum of consecutive naturals, for example, 1670605 + ... + 1670926.

It is an arithmetic number, because the mean of its divisors is an integer number (80196768).

Almost surely, 2^537986491 is an apocalyptic number.

537986491 is a deficient number, since it is larger than the sum of its proper divisors (103587653).

537986491 is a wasteful number, since it uses less digits than its factorization.

537986491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3341561.

The product of its digits is 1632960, while the sum is 52.

The square root of 537986491 is about 23194.5358004854. The cubic root of 537986491 is about 813.3118939562.

The spelling of 537986491 in words is "five hundred thirty-seven million, nine hundred eighty-six thousand, four hundred ninety-one".