6991360 has 40 divisors (see below), whose sum is σ = 16769016. Its totient is φ = 2795520.

The previous prime is 6991319. The next prime is 6991363. The reversal of 6991360 is 631996.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×6991360² = 97758229299200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6991363) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1195 + ... + 3925.

Almost surely, 2^6991360 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 6991360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8384508).

6991360 is an abundant number, since it is smaller than the sum of its proper divisors (9777656).

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

6991360 is an equidigital number, since it uses as much as digits as its factorization.

6991360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2754 (or 2738 counting only the distinct ones).

The product of its (nonzero) digits is 8748, while the sum is 34.

The square root of 6991360 is about 2644.1180003926. The cubic root of 6991360 is about 191.2143824198.

The spelling of 6991360 in words is "six million, nine hundred ninety-one thousand, three hundred sixty".