6890000065 has 8 divisors (see below), whose sum is σ = 8904000168. Its totient is φ = 5088000000.

The previous prime is 6890000041. The next prime is 6890000071. The reversal of 6890000065 is 5600000986.

It can be written as a sum of positive squares in 4 ways, for example, as 601034256 + 6288965809 = 24516^2 + 79303^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6890000065 - 2²¹ = 6887902913 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52999936 + ... + 53000065.

It is an arithmetic number, because the mean of its divisors is an integer number (1113000021).

Almost surely, 2^6890000065 is an apocalyptic number.

6890000065 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

6890000065 is a deficient number, since it is larger than the sum of its proper divisors (2014000103).

6890000065 is a wasteful number, since it uses less digits than its factorization.

6890000065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106000019.

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 6890000065 is about 83006.0242693264. The cubic root of 6890000065 is about 1902.8581236463.

The spelling of 6890000065 in words is "six billion, eight hundred ninety million, sixty-five", and thus it is an aban number.