511898 has 12 divisors (see below), whose sum is σ = 811530. Its totient is φ = 242136.

The previous prime is 511897. The next prime is 511909. The reversal of 511898 is 898115.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 494209 + 17689 = 703^2 + 133^2 .

It is not an unprimeable number, because it can be changed into a prime (511891) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 368 + ... + 1076.

2⁵¹¹⁸⁹⁸ is an apocalyptic number.

511898 is a deficient number, since it is larger than the sum of its proper divisors (299632).

511898 is a wasteful number, since it uses less digits than its factorization.

511898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 749 (or 730 counting only the distinct ones).

The product of its digits is 2880, while the sum is 32.

The square root of 511898 is about 715.4704745830. The cubic root of 511898 is about 79.9946871472.

The spelling of 511898 in words is "five hundred eleven thousand, eight hundred ninety-eight".