618878 has 12 divisors (see below), whose sum is σ = 1005768. Its totient is φ = 285480.

The previous prime is 618869. The next prime is 618883. The reversal of 618878 is 878816.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 578 + ... + 1253.

It is an arithmetic number, because the mean of its divisors is an integer number (83814).

2⁶¹⁸⁸⁷⁸ is an apocalyptic number.

618878 is a deficient number, since it is larger than the sum of its proper divisors (386890).

618878 is a wasteful number, since it uses less digits than its factorization.

618878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1859 (or 1846 counting only the distinct ones).

The product of its digits is 21504, while the sum is 38.

The square root of 618878 is about 786.6879940612. The cubic root of 618878 is about 85.2187215943.

The spelling of 618878 in words is "six hundred eighteen thousand, eight hundred seventy-eight".