6990707 has 4 divisors (see below), whose sum is σ = 6996000. Its totient is φ = 6985416.

The previous prime is 6990703. The next prime is 6990721. The reversal of 6990707 is 7070996.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 6990707 - 2² = 6990703 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6990701) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1169 + ... + 3917.

It is an arithmetic number, because the mean of its divisors is an integer number (1749000).

Almost surely, 2^6990707 is an apocalyptic number.

6990707 is a deficient number, since it is larger than the sum of its proper divisors (5293).

6990707 is a wasteful number, since it uses less digits than its factorization.

6990707 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5292.

The product of its (nonzero) digits is 23814, while the sum is 38.

The square root of 6990707 is about 2643.9945158793. The cubic root of 6990707 is about 191.2084290297.

The spelling of 6990707 in words is "six million, nine hundred ninety thousand, seven hundred seven".