618611 has 8 divisors (see below), whose sum is σ = 718080. Its totient is φ = 521928.

The previous prime is 618593. The next prime is 618619. The reversal of 618611 is 116816.

It is a happy number.

618611 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 618611 - 2⁶ = 618547 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (618619) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 191 + ... + 1128.

It is an arithmetic number, because the mean of its divisors is an integer number (89760).

2⁶¹⁸⁶¹¹ is an apocalyptic number.

618611 is a deficient number, since it is larger than the sum of its proper divisors (99469).

618611 is a wasteful number, since it uses less digits than its factorization.

618611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1393.

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

The square root of 618611 is about 786.5182769650. The cubic root of 618611 is about 85.2064646435.

The spelling of 618611 in words is "six hundred eighteen thousand, six hundred eleven".