618772 has 48 divisors (see below), whose sum is σ = 1411200. Its totient is φ = 235200.

The previous prime is 618719. The next prime is 618799. The reversal of 618772 is 277816.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15072 + ... + 15112.

It is an arithmetic number, because the mean of its divisors is an integer number (29400).

2⁶¹⁸⁷⁷² is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 618772, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (705600).

618772 is an abundant number, since it is smaller than the sum of its proper divisors (792428).

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

618772 is a wasteful number, since it uses less digits than its factorization.

618772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77 (or 61 counting only the distinct ones).

The product of its digits is 4704, while the sum is 31.

The square root of 618772 is about 786.6206201213. The cubic root of 618772 is about 85.2138559610.

The spelling of 618772 in words is "six hundred eighteen thousand, seven hundred seventy-two".