6990507 has 12 divisors (see below), whose sum is σ = 10196784. Its totient is φ = 4614480.

The previous prime is 6990493. The next prime is 6990517. The reversal of 6990507 is 7050996.

6990507 is a `hidden beast` number, since 69 + 90 + 507 = 666.

6990507 is nontrivially palindromic in base 2.

It is not a de Polignac number, because 6990507 - 2⁸ = 6990251 is a prime.

It is a plaindrome in base 4 and base 16.

It is not an unprimeable number, because it can be changed into a prime (6990517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2844 + ... + 4697.

It is an arithmetic number, because the mean of its divisors is an integer number (849732).

Almost surely, 2^6990507 is an apocalyptic number.

6990507 is a deficient number, since it is larger than the sum of its proper divisors (3206277).

6990507 is a wasteful number, since it uses less digits than its factorization.

6990507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7650 (or 7647 counting only the distinct ones).

The product of its (nonzero) digits is 17010, while the sum is 36.

The square root of 6990507 is about 2643.9566940478. The cubic root of 6990507 is about 191.2066055589.

The spelling of 6990507 in words is "six million, nine hundred ninety thousand, five hundred seven".