6990536 has 48 divisors (see below), whose sum is σ = 16159500. Its totient is φ = 2817024.

The previous prime is 6990527. The next prime is 6990547. The reversal of 6990536 is 6350996.

It can be written as a sum of positive squares in 2 ways, for example, as 6002500 + 988036 = 2450^2 + 994^2 .

It is a super-3 number, since 3×6990536³ (a number of 22 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 6990536.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6140 + ... + 7188.

Almost surely, 2^6990536 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6990536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8079750).

6990536 is an abundant number, since it is smaller than the sum of its proper divisors (9168964).

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

6990536 is a wasteful number, since it uses less digits than its factorization.

6990536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1086 (or 1075 counting only the distinct ones).

The product of its (nonzero) digits is 43740, while the sum is 38.

The square root of 6990536 is about 2643.9621782469. The cubic root of 6990536 is about 191.2068699643.

The spelling of 6990536 in words is "six million, nine hundred ninety thousand, five hundred thirty-six".