611816 has 16 divisors (see below), whose sum is σ = 1184640. Its totient is φ = 295920.

The previous prime is 611803. The next prime is 611827. The reversal of 611816 is 618116.

It is a happy number.

611816 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 611791 and 611800.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 986 + ... + 1481.

It is an arithmetic number, because the mean of its divisors is an integer number (74040).

2⁶¹¹⁸¹⁶ is an apocalyptic number.

It is an amenable number.

611816 is a deficient number, since it is larger than the sum of its proper divisors (572824).

611816 is a wasteful number, since it uses less digits than its factorization.

611816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2504 (or 2500 counting only the distinct ones).

The product of its digits is 288, while the sum is 23.

The square root of 611816 is about 782.1866784854. The cubic root of 611816 is about 84.8933379530.

The spelling of 611816 in words is "six hundred eleven thousand, eight hundred sixteen".