6990520 has 16 divisors (see below), whose sum is σ = 15728760. Its totient is φ = 2796192.

The previous prime is 6990517. The next prime is 6990527. The reversal of 6990520 is 250996.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6990527) 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, 87342 + ... + 87421.

Almost surely, 2^6990520 is an apocalyptic number.

It is an amenable number.

6990520 is an abundant number, since it is smaller than the sum of its proper divisors (8738240).

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

6990520 is a wasteful number, since it uses less digits than its factorization.

6990520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174774 (or 174770 counting only the distinct ones).

The product of its (nonzero) digits is 4860, while the sum is 31.

The square root of 6990520 is about 2643.9591524833. The cubic root of 6990520 is about 191.2067240856.

The spelling of 6990520 in words is "six million, nine hundred ninety thousand, five hundred twenty".