6990975 has 24 divisors (see below), whose sum is σ = 12843920. Its totient is φ = 3728160.

The previous prime is 6990967. The next prime is 6991003. The reversal of 6990975 is 5790996.

It is not a de Polignac number, because 6990975 - 2³ = 6990967 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 6990975.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4504 + ... + 5853.

Almost surely, 2^6990975 is an apocalyptic number.

6990975 is a deficient number, since it is larger than the sum of its proper divisors (5852945).

6990975 is a wasteful number, since it uses less digits than its factorization.

6990975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10376 (or 10365 counting only the distinct ones).

The product of its (nonzero) digits is 153090, while the sum is 45.

The square root of 6990975 is about 2644.0451962854. The cubic root of 6990975 is about 191.2108724261.

The spelling of 6990975 in words is "six million, nine hundred ninety thousand, nine hundred seventy-five".