6969889 has 4 divisors (see below), whose sum is σ = 7210260. Its totient is φ = 6729520.

The previous prime is 6969883. The next prime is 6969899. The reversal of 6969889 is 9889696.

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 3610000 + 3359889 = 1900^2 + 1833^2 .

It is a cyclic number.

It is not a de Polignac number, because 6969889 - 2¹³ = 6961697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6969883) 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, 120142 + ... + 120199.

It is an arithmetic number, because the mean of its divisors is an integer number (1802565).

Almost surely, 2^6969889 is an apocalyptic number.

It is an amenable number.

6969889 is a deficient number, since it is larger than the sum of its proper divisors (240371).

6969889 is a wasteful number, since it uses less digits than its factorization.

6969889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240370.

The product of its digits is 1679616, while the sum is 55.

The square root of 6969889 is about 2640.0547342811. The cubic root of 6969889 is about 191.0184370423.

It can be divided in two parts, 696 and 9889, that added together give a triangular number (10585 = T₁₄₅).

The spelling of 6969889 in words is "six million, nine hundred sixty-nine thousand, eight hundred eighty-nine".