611828 has 12 divisors (see below), whose sum is σ = 1223712. Its totient is φ = 262200.

The previous prime is 611827. The next prime is 611833. The reversal of 611828 is 828116.

611828 is an admirable number.

It is a hoax number, since the sum of its digits (26) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 611797 and 611806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (611827) 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 3 ways as a sum of consecutive naturals, for example, 10898 + ... + 10953.

It is an arithmetic number, because the mean of its divisors is an integer number (101976).

2⁶¹¹⁸²⁸ is an apocalyptic number.

It is an amenable number.

611828 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

611828 is a wasteful number, since it uses less digits than its factorization.

611828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21862 (or 21860 counting only the distinct ones).

The product of its digits is 768, while the sum is 26.

The square root of 611828 is about 782.1943492509. The cubic root of 611828 is about 84.8938929747.

The spelling of 611828 in words is "six hundred eleven thousand, eight hundred twenty-eight".