7898436 has 72 divisors (see below), whose sum is σ = 24583104. Its totient is φ = 2082240.

The previous prime is 7898417. The next prime is 7898447. The reversal of 7898436 is 6348987.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 7898391 and 7898400.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2071 + ... + 4481.

It is an arithmetic number, because the mean of its divisors is an integer number (341432).

Almost surely, 2^7898436 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7898436, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12291552).

7898436 is an abundant number, since it is smaller than the sum of its proper divisors (16684668).

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

7898436 is a wasteful number, since it uses less digits than its factorization.

7898436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2441 (or 2436 counting only the distinct ones).

The product of its digits is 290304, while the sum is 45.

The square root of 7898436 is about 2810.4156276252. The cubic root of 7898436 is about 199.1500261730.

The spelling of 7898436 in words is "seven million, eight hundred ninety-eight thousand, four hundred thirty-six".