618992 has 20 divisors (see below), whose sum is σ = 1308696. Its totient is φ = 281280.

The previous prime is 618991. The next prime is 618997. The reversal of 618992 is 299816.

618992 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 618992.

It is not an unprimeable number, because it can be changed into a prime (618991) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1583 + ... + 1934.

2⁶¹⁸⁹⁹² is an apocalyptic number.

It is an amenable number.

618992 is an abundant number, since it is smaller than the sum of its proper divisors (689704).

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

618992 is a wasteful number, since it uses less digits than its factorization.

618992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3536 (or 3530 counting only the distinct ones).

The product of its digits is 7776, while the sum is 35.

The square root of 618992 is about 786.7604463876. The cubic root of 618992 is about 85.2239538252.

The spelling of 618992 in words is "six hundred eighteen thousand, nine hundred ninety-two".