6998865 has 16 divisors (see below), whose sum is σ = 11231808. Its totient is φ = 3721536.

The previous prime is 6998863. The next prime is 6998869. The reversal of 6998865 is 5688996.

It is not a de Polignac number, because 6998865 - 2¹ = 6998863 is a prime.

It is a super-2 number, since 2×6998865² = 97968222576450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6998861) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7779 + ... + 8631.

It is an arithmetic number, because the mean of its divisors is an integer number (701988).

Almost surely, 2^6998865 is an apocalyptic number.

It is an amenable number.

6998865 is a deficient number, since it is larger than the sum of its proper divisors (4232943).

6998865 is a wasteful number, since it uses less digits than its factorization.

6998865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1408.

The product of its digits is 933120, while the sum is 51.

The square root of 6998865 is about 2645.5368075308. The cubic root of 6998865 is about 191.2827787808.

The spelling of 6998865 in words is "six million, nine hundred ninety-eight thousand, eight hundred sixty-five".