6927990 has 16 divisors (see below), whose sum is σ = 16627248. Its totient is φ = 1847456.

The previous prime is 6927979. The next prime is 6927997. The reversal of 6927990 is 997296.

It is an Ulam number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6927997) 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, 115437 + ... + 115496.

It is an arithmetic number, because the mean of its divisors is an integer number (1039203).

Almost surely, 2^6927990 is an apocalyptic number.

6927990 is an abundant number, since it is smaller than the sum of its proper divisors (9699258).

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

6927990 is a wasteful number, since it uses less digits than its factorization.

6927990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230943.

The product of its (nonzero) digits is 61236, while the sum is 42.

The square root of 6927990 is about 2632.1075206002. The cubic root of 6927990 is about 190.6349028269.

The spelling of 6927990 in words is "six million, nine hundred twenty-seven thousand, nine hundred ninety".