65865001 has 8 divisors (see below), whose sum is σ = 70807680. Its totient is φ = 61069968.

The previous prime is 65864999. The next prime is 65865017. The reversal of 65865001 is 10056856.

65865001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 65865001 - 2¹ = 65864999 is a prime.

It is not an unprimeable number, because it can be changed into a prime (65865601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35986 + ... + 37771.

It is an arithmetic number, because the mean of its divisors is an integer number (8850960).

Almost surely, 2^65865001 is an apocalyptic number.

It is an amenable number.

65865001 is a deficient number, since it is larger than the sum of its proper divisors (4942679).

65865001 is a wasteful number, since it uses less digits than its factorization.

65865001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73823.

The product of its (nonzero) digits is 7200, while the sum is 31.

The square root of 65865001 is about 8115.7255374982. The cubic root of 65865001 is about 403.8482769324.

The spelling of 65865001 in words is "sixty-five million, eight hundred sixty-five thousand, one".