618863 has 8 divisors (see below), whose sum is σ = 712320. Its totient is φ = 526680.

The previous prime is 618859. The next prime is 618869. The reversal of 618863 is 368816.

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

It is not a de Polignac number, because 618863 - 2² = 618859 is a prime.

It is a plaindrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (618869) 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, 1268 + ... + 1686.

It is an arithmetic number, because the mean of its divisors is an integer number (89040).

2⁶¹⁸⁸⁶³ is an apocalyptic number.

618863 is a deficient number, since it is larger than the sum of its proper divisors (93457).

618863 is a wasteful number, since it uses less digits than its factorization.

618863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 637.

The product of its digits is 6912, while the sum is 32.

The square root of 618863 is about 786.6784603636. The cubic root of 618863 is about 85.2180330951.

Subtracting from 618863 its reverse (368816), we obtain a cube (250047 = 63³).

The spelling of 618863 in words is "six hundred eighteen thousand, eight hundred sixty-three".