6990020 has 24 divisors (see below), whose sum is σ = 14734104. Its totient is φ = 2785536.

The previous prime is 6990019. The next prime is 6990041. The reversal of 6990020 is 200996.

It can be written as a sum of positive squares in 4 ways, for example, as 30976 + 6959044 = 176^2 + 2638^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6992 + ... + 7928.

It is an arithmetic number, because the mean of its divisors is an integer number (613921).

Almost surely, 2^6990020 is an apocalyptic number.

It is an amenable number.

6990020 is an abundant number, since it is smaller than the sum of its proper divisors (7744084).

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

6990020 is a wasteful number, since it uses less digits than its factorization.

6990020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1319 (or 1317 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 26.

The square root of 6990020 is about 2643.8645956251. The cubic root of 6990020 is about 191.2021652620.

The spelling of 6990020 in words is "six million, nine hundred ninety thousand, twenty".