6990529 has 8 divisors (see below), whose sum is σ = 8603840. Its totient is φ = 5530896.

The previous prime is 6990527. The next prime is 6990547. The reversal of 6990529 is 9250996.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6990529 - 2¹ = 6990527 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6990491 and 6990500.

It is not an unprimeable number, because it can be changed into a prime (6990527) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 38319 + ... + 38500.

It is an arithmetic number, because the mean of its divisors is an integer number (1075480).

Almost surely, 2^6990529 is an apocalyptic number.

It is an amenable number.

6990529 is a deficient number, since it is larger than the sum of its proper divisors (1613311).

6990529 is a wasteful number, since it uses less digits than its factorization.

6990529 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76839.

The product of its (nonzero) digits is 43740, while the sum is 40.

The square root of 6990529 is about 2643.9608544757. The cubic root of 6990529 is about 191.2068061424.

The spelling of 6990529 in words is "six million, nine hundred ninety thousand, five hundred twenty-nine".