7081398 has 32 divisors (see below), whose sum is σ = 15966720. Its totient is φ = 2325960.

The previous prime is 7081387. The next prime is 7081411. The reversal of 7081398 is 8931807.

7081398 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a zygodrome in base 8.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2911 + ... + 4757.

It is an arithmetic number, because the mean of its divisors is an integer number (498960).

Almost surely, 2^7081398 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7081398, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7983360).

7081398 is an abundant number, since it is smaller than the sum of its proper divisors (8885322).

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

7081398 is a wasteful number, since it uses less digits than its factorization.

7081398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1929 (or 1923 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 36.

The square root of 7081398 is about 2661.0896264500. The cubic root of 7081398 is about 192.0317330362.

The spelling of 7081398 in words is "seven million, eighty-one thousand, three hundred ninety-eight".