7898340 has 24 divisors (see below), whose sum is σ = 22115520. Its totient is φ = 2106208.

The previous prime is 7898339. The next prime is 7898347. The reversal of 7898340 is 438987.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (7898347) 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, 65760 + ... + 65879.

It is an arithmetic number, because the mean of its divisors is an integer number (921480).

Almost surely, 2^7898340 is an apocalyptic number.

It is an amenable number.

7898340 is an abundant number, since it is smaller than the sum of its proper divisors (14217180).

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

7898340 is a wasteful number, since it uses less digits than its factorization.

7898340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131651 (or 131649 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 39.

The square root of 7898340 is about 2810.3985482490. The cubic root of 7898340 is about 199.1492193264.

The spelling of 7898340 in words is "seven million, eight hundred ninety-eight thousand, three hundred forty".