618898 has 8 divisors (see below), whose sum is σ = 1060992. Its totient is φ = 265236.

The previous prime is 618883. The next prime is 618913. The reversal of 618898 is 898816.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (618883) and next prime (618913).

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

It is a self number, because there is not a number n which added to its sum of digits gives 618898.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22090 + ... + 22117.

It is an arithmetic number, because the mean of its divisors is an integer number (132624).

2⁶¹⁸⁸⁹⁸ is an apocalyptic number.

618898 is a deficient number, since it is larger than the sum of its proper divisors (442094).

618898 is a wasteful number, since it uses less digits than its factorization.

618898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44216.

The product of its digits is 27648, while the sum is 40.

The square root of 618898 is about 786.7007054783. The cubic root of 618898 is about 85.2196395760.

The spelling of 618898 in words is "six hundred eighteen thousand, eight hundred ninety-eight".