65846865 has 64 divisors (see below), whose sum is σ = 131065344. Its totient is φ = 27537408.

The previous prime is 65846843. The next prime is 65846867. The reversal of 65846865 is 56864856.

It is a happy number.

It is not a de Polignac number, because 65846865 - 2¹⁰ = 65845841 is a prime.

It is not an unprimeable number, because it can be changed into a prime (65846867) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 65547 + ... + 66543.

It is an arithmetic number, because the mean of its divisors is an integer number (2047896).

Almost surely, 2^65846865 is an apocalyptic number.

It is an amenable number.

65846865 is a deficient number, since it is larger than the sum of its proper divisors (65218479).

65846865 is a wasteful number, since it uses less digits than its factorization.

65846865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1066.

The product of its digits is 1382400, while the sum is 48.

The square root of 65846865 is about 8114.6081236249. The cubic root of 65846865 is about 403.8112068416.

Subtracting from 65846865 its reverse (56864856), we obtain a square (8982009 = 2997²).

The spelling of 65846865 in words is "sixty-five million, eight hundred forty-six thousand, eight hundred sixty-five".