65313873 has 6 divisors (see below), whose sum is σ = 94342274. Its totient is φ = 43542576.

The previous prime is 65313851. The next prime is 65313907. The reversal of 65313873 is 37831356.

65313873 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 42732369 + 22581504 = 6537^2 + 4752^2 .

It is not a de Polignac number, because 65313873 - 2⁵ = 65313841 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (65363873) 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 5 ways as a sum of consecutive naturals, for example, 3628540 + ... + 3628557.

Almost surely, 2^65313873 is an apocalyptic number.

It is an amenable number.

65313873 is a deficient number, since it is larger than the sum of its proper divisors (29028401).

65313873 is a wasteful number, since it uses less digits than its factorization.

65313873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7257103 (or 7257100 counting only the distinct ones).

The product of its digits is 45360, while the sum is 36.

The square root of 65313873 is about 8081.6998830692. The cubic root of 65313873 is about 402.7187150233.

It can be divided in two parts, 6531 and 3873, that added together give a square (10404 = 102²).

The spelling of 65313873 in words is "sixty-five million, three hundred thirteen thousand, eight hundred seventy-three".