6993780 has 48 divisors (see below), whose sum is σ = 20067264. Its totient is φ = 1818880.

The previous prime is 6993773. The next prime is 6993781. The reversal of 6993780 is 873996.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6993781) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1039 + ... + 3881.

It is an arithmetic number, because the mean of its divisors is an integer number (418068).

Almost surely, 2^6993780 is an apocalyptic number.

6993780 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6993780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10033632).

6993780 is an abundant number, since it is smaller than the sum of its proper divisors (13073484).

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

6993780 is a wasteful number, since it uses less digits than its factorization.

6993780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2896 (or 2894 counting only the distinct ones).

The product of its (nonzero) digits is 81648, while the sum is 42.

The square root of 6993780 is about 2644.5755803153. The cubic root of 6993780 is about 191.2364422872.

The spelling of 6993780 in words is "six million, nine hundred ninety-three thousand, seven hundred eighty".