6933990 has 96 divisors (see below), whose sum is σ = 19945440. Its totient is φ = 1537536.

The previous prime is 6933967. The next prime is 6933991. The reversal of 6933990 is 993396.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6933991) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 77866 + ... + 77954.

It is an arithmetic number, because the mean of its divisors is an integer number (207765).

Almost surely, 2^6933990 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6933990, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9972720).

6933990 is an abundant number, since it is smaller than the sum of its proper divisors (13011450).

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

6933990 is a wasteful number, since it uses less digits than its factorization.

6933990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166 (or 159 counting only the distinct ones).

The product of its (nonzero) digits is 39366, while the sum is 39.

The square root of 6933990 is about 2633.2470449998. The cubic root of 6933990 is about 190.6899201974.

The spelling of 6933990 in words is "six million, nine hundred thirty-three thousand, nine hundred ninety".