618922 has 4 divisors (see below), whose sum is σ = 928386. Its totient is φ = 309460.

The previous prime is 618913. The next prime is 618929. The reversal of 618922 is 229816.

It is a happy number.

618922 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 488601 + 130321 = 699^2 + 361^2 .

It is not an unprimeable number, because it can be changed into a prime (618929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 154729 + ... + 154732.

2⁶¹⁸⁹²² is an apocalyptic number.

618922 is a deficient number, since it is larger than the sum of its proper divisors (309464).

618922 is a wasteful number, since it uses less digits than its factorization.

618922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 309463.

The product of its digits is 1728, while the sum is 28.

The square root of 618922 is about 786.7159589077. The cubic root of 618922 is about 85.2207411280.

It can be divided in two parts, 618 and 922, that added together give a triangular number (1540 = T₅₅).

The spelling of 618922 in words is "six hundred eighteen thousand, nine hundred twenty-two".