511798 has 16 divisors (see below), whose sum is σ = 887040. Its totient is φ = 216936.

The previous prime is 511793. The next prime is 511801. The reversal of 511798 is 897115.

It is a super-4 number, since 4×511798⁴ (a number of 24 digits) contains 4444 as substring.

It is a zygodrome in base 3.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (511793) by changing a digit.

511798 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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 7 ways as a sum of consecutive naturals, for example, 1815 + ... + 2077.

It is an arithmetic number, because the mean of its divisors is an integer number (55440).

2⁵¹¹⁷⁹⁸ is an apocalyptic number.

511798 is a deficient number, since it is larger than the sum of its proper divisors (375242).

511798 is a wasteful number, since it uses less digits than its factorization.

511798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 411.

The product of its digits is 2520, while the sum is 31.

The square root of 511798 is about 715.4005870839. The cubic root of 511798 is about 79.9894777828.

It can be divided in two parts, 51 and 1798, that added together give a square (1849 = 43²).

The spelling of 511798 in words is "five hundred eleven thousand, seven hundred ninety-eight".