7898842 has 16 divisors (see below), whose sum is σ = 13856832. Its totient is φ = 3306240.

The previous prime is 7898809. The next prime is 7898843. The reversal of 7898842 is 2488987.

It is a d-powerful number, because it can be written as 7⁸ + 8 + 9 + 8 + 8⁵ + 4⁶ + 2²¹ .

It is a junction number, because it is equal to n+sod(n) for n = 7898792 and 7898801.

It is not an unprimeable number, because it can be changed into a prime (7898843) 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, 5959 + ... + 7162.

It is an arithmetic number, because the mean of its divisors is an integer number (866052).

Almost surely, 2^7898842 is an apocalyptic number.

7898842 is a deficient number, since it is larger than the sum of its proper divisors (5957990).

7898842 is a wasteful number, since it uses less digits than its factorization.

7898842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13173.

The product of its digits is 258048, while the sum is 46.

The square root of 7898842 is about 2810.4878580062. The cubic root of 7898842 is about 199.1534383897.

The spelling of 7898842 in words is "seven million, eight hundred ninety-eight thousand, eight hundred forty-two".