6945789 has 4 divisors (see below), whose sum is σ = 9261056. Its totient is φ = 4630524.

The previous prime is 6945779. The next prime is 6945803. The reversal of 6945789 is 9875496.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 6945789 - 2¹⁵ = 6913021 is a prime.

It is a D-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 (6945709) 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, 1157629 + ... + 1157634.

It is an arithmetic number, because the mean of its divisors is an integer number (2315264).

Almost surely, 2^6945789 is an apocalyptic number.

It is an amenable number.

6945789 is a deficient number, since it is larger than the sum of its proper divisors (2315267).

6945789 is a wasteful number, since it uses less digits than its factorization.

6945789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2315266.

The product of its digits is 544320, while the sum is 48.

The square root of 6945789 is about 2635.4864826062. The cubic root of 6945789 is about 190.7980193528.

The spelling of 6945789 in words is "six million, nine hundred forty-five thousand, seven hundred eighty-nine".