65007889 has 4 divisors (see below), whose sum is σ = 65978224. Its totient is φ = 64037556.

The previous prime is 65007869. The next prime is 65007907. The reversal of 65007889 is 98870056.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 65007889 - 2⁵ = 65007857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65007809) 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, 485067 + ... + 485200.

It is an arithmetic number, because the mean of its divisors is an integer number (16494556).

Almost surely, 2^65007889 is an apocalyptic number.

It is an amenable number.

65007889 is a deficient number, since it is larger than the sum of its proper divisors (970335).

65007889 is an equidigital number, since it uses as much as digits as its factorization.

65007889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 970334.

The product of its (nonzero) digits is 120960, while the sum is 43.

The square root of 65007889 is about 8062.7469884649. The cubic root of 65007889 is about 402.0888416140.

The spelling of 65007889 in words is "sixty-five million, seven thousand, eight hundred eighty-nine".