611478 has 48 divisors (see below), whose sum is σ = 1587456. Its totient is φ = 166320.

The previous prime is 611467. The next prime is 611483. The reversal of 611478 is 874116.

It is a happy number.

611478 is a `hidden beast` number, since 611 + 47 + 8 = 666.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2793 + ... + 3003.

It is an arithmetic number, because the mean of its divisors is an integer number (33072).

2⁶¹¹⁴⁷⁸ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 611478, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (793728).

611478 is an abundant number, since it is smaller than the sum of its proper divisors (975978).

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

611478 is a wasteful number, since it uses less digits than its factorization.

611478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249 (or 246 counting only the distinct ones).

The product of its digits is 1344, while the sum is 27.

The square root of 611478 is about 781.9705876822. The cubic root of 611478 is about 84.8777018610.

It can be divided in two parts, 611 and 478, that added together give a square (1089 = 33²).

The spelling of 611478 in words is "six hundred eleven thousand, four hundred seventy-eight".