6989305 has 4 divisors (see below), whose sum is σ = 8387172. Its totient is φ = 5591440.

The previous prime is 6989303. The next prime is 6989327. The reversal of 6989305 is 5039896.

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

It can be written as a sum of positive squares in 2 ways, for example, as 853776 + 6135529 = 924^2 + 2477^2 .

It is not a de Polignac number, because 6989305 - 2¹ = 6989303 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6989303) 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, 698926 + ... + 698935.

It is an arithmetic number, because the mean of its divisors is an integer number (2096793).

Almost surely, 2^6989305 is an apocalyptic number.

It is an amenable number.

6989305 is a deficient number, since it is larger than the sum of its proper divisors (1397867).

6989305 is a wasteful number, since it uses less digits than its factorization.

6989305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1397866.

The product of its (nonzero) digits is 58320, while the sum is 40.

The square root of 6989305 is about 2643.7293734420. The cubic root of 6989305 is about 191.1956457666.

The spelling of 6989305 in words is "six million, nine hundred eighty-nine thousand, three hundred five".