537818 has 4 divisors (see below), whose sum is σ = 806730. Its totient is φ = 268908.

The previous prime is 537811. The next prime is 537841. The reversal of 537818 is 818735.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 537289 + 529 = 733^2 + 23^2 .

It is a super-2 number, since 2×537818² = 578496402248, which contains 22 as substring.

It is a nialpdrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (537811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 134453 + ... + 134456.

2⁵³⁷⁸¹⁸ is an apocalyptic number.

537818 is a deficient number, since it is larger than the sum of its proper divisors (268912).

537818 is a wasteful number, since it uses less digits than its factorization.

537818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268911.

The product of its digits is 6720, while the sum is 32.

The square root of 537818 is about 733.3607570630. The cubic root of 537818 is about 81.3226978538.

The spelling of 537818 in words is "five hundred thirty-seven thousand, eight hundred eighteen".