6990767 has 4 divisors (see below), whose sum is σ = 7989456. Its totient is φ = 5992080.

The previous prime is 6990761. The next prime is 6990799. The reversal of 6990767 is 7670996.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6990767 - 2⁴ = 6990751 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6990761) 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, 499334 + ... + 499347.

It is an arithmetic number, because the mean of its divisors is an integer number (1997364).

Almost surely, 2^6990767 is an apocalyptic number.

6990767 is a deficient number, since it is larger than the sum of its proper divisors (998689).

6990767 is an equidigital number, since it uses as much as digits as its factorization.

6990767 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 998688.

The product of its (nonzero) digits is 142884, while the sum is 44.

The square root of 6990767 is about 2644.0058623233. The cubic root of 6990767 is about 191.2089760642.

The spelling of 6990767 in words is "six million, nine hundred ninety thousand, seven hundred sixty-seven".