65000999 has 6 divisors (see below), whose sum is σ = 75613464. Its totient is φ = 55715100.

The previous prime is 65000989. The next prime is 65001019. The reversal of 65000999 is 99900056.

It is not a de Polignac number, because 65000999 - 2⁸ = 65000743 is a prime.

It is a Duffinian number.

65000999 is a modest number, since divided by 999 gives 65 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65000959) 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, 663227 + ... + 663324.

It is an arithmetic number, because the mean of its divisors is an integer number (12602244).

Almost surely, 2^65000999 is an apocalyptic number.

65000999 is a deficient number, since it is larger than the sum of its proper divisors (10612465).

65000999 is a wasteful number, since it uses less digits than its factorization.

65000999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1326565 (or 1326558 counting only the distinct ones).

The product of its (nonzero) digits is 21870, while the sum is 38.

The square root of 65000999 is about 8062.3197034104. The cubic root of 65000999 is about 402.0746356971.

It can be divided in two parts, 6 and 5000999, that added together give a palindrome (5001005).

The spelling of 65000999 in words is "sixty-five million, nine hundred ninety-nine", and thus it is an aban number.