6994889 has 6 divisors (see below), whose sum is σ = 7688730. Its totient is φ = 6358880.

The previous prime is 6994873. The next prime is 6994891. The reversal of 6994889 is 9884996.

It can be written as a sum of positive squares in only one way, i.e., 5856400 + 1138489 = 2420^2 + 1067^2 .

It is not a de Polignac number, because 6994889 - 2⁴ = 6994873 is a prime.

It is a d-powerful number, because it can be written as 6 + 9⁴ + 9⁵ + 4⁷ + 8⁵ + 8⁷ + 9⁷ .

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6994889.

It is not an unprimeable number, because it can be changed into a prime (6994859) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 28784 + ... + 29025.

It is an arithmetic number, because the mean of its divisors is an integer number (1281455).

Almost surely, 2^6994889 is an apocalyptic number.

It is an amenable number.

6994889 is a deficient number, since it is larger than the sum of its proper divisors (693841).

6994889 is a wasteful number, since it uses less digits than its factorization.

6994889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57831 (or 57820 counting only the distinct ones).

The product of its digits is 1119744, while the sum is 53.

The square root of 6994889 is about 2644.7852464803. The cubic root of 6994889 is about 191.2465498402.

The spelling of 6994889 in words is "six million, nine hundred ninety-four thousand, eight hundred eighty-nine".