6530990 has 16 divisors (see below), whose sum is σ = 11810448. Its totient is φ = 2600256.

The previous prime is 6530989. The next prime is 6530999. The reversal of 6530990 is 990356.

It is a plaindrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6530999) 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, 929 + ... + 3731.

It is an arithmetic number, because the mean of its divisors is an integer number (738153).

Almost surely, 2^6530990 is an apocalyptic number.

6530990 is a deficient number, since it is larger than the sum of its proper divisors (5279458).

6530990 is a wasteful number, since it uses less digits than its factorization.

6530990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3043.

The product of its (nonzero) digits is 7290, while the sum is 32.

The square root of 6530990 is about 2555.5801689636. The cubic root of 6530990 is about 186.9216788126.

The spelling of 6530990 in words is "six million, five hundred thirty thousand, nine hundred ninety".