6998807 has 4 divisors (see below), whose sum is σ = 7004760. Its totient is φ = 6992856.

The previous prime is 6998779. The next prime is 6998833. The reversal of 6998807 is 7088996.

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 6998807 - 2¹² = 6994711 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6998837) 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 3 ways as a sum of consecutive naturals, for example, 557 + ... + 3782.

It is an arithmetic number, because the mean of its divisors is an integer number (1751190).

Almost surely, 2^6998807 is an apocalyptic number.

6998807 is a deficient number, since it is larger than the sum of its proper divisors (5953).

6998807 is a wasteful number, since it uses less digits than its factorization.

6998807 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5952.

The product of its (nonzero) digits is 217728, while the sum is 47.

The square root of 6998807 is about 2645.5258456496. The cubic root of 6998807 is about 191.2822503889.

The spelling of 6998807 in words is "six million, nine hundred ninety-eight thousand, eight hundred seven".