7898118 has 16 divisors (see below), whose sum is σ = 16306176. Its totient is φ = 2547720.

The previous prime is 7898071. The next prime is 7898123. The reversal of 7898118 is 8118987.

It is a self number, because there is not a number n which added to its sum of digits gives 7898118.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21046 + ... + 21417.

It is an arithmetic number, because the mean of its divisors is an integer number (1019136).

Almost surely, 2^7898118 is an apocalyptic number.

7898118 is an abundant number, since it is smaller than the sum of its proper divisors (8408058).

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

7898118 is a wasteful number, since it uses less digits than its factorization.

7898118 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42499.

The product of its digits is 32256, while the sum is 42.

The square root of 7898118 is about 2810.3590517939. The cubic root of 7898118 is about 199.1473534685.

It can be divided in two parts, 7 and 898118, that multiplied together give a palindrome (6286826).

The spelling of 7898118 in words is "seven million, eight hundred ninety-eight thousand, one hundred eighteen".