65873745 has 24 divisors (see below), whose sum is σ = 130493376. Its totient is φ = 30113568.

The previous prime is 65873737. The next prime is 65873747. The reversal of 65873745 is 54737856.

It is not a de Polignac number, because 65873745 - 2³ = 65873737 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 65873745.

It is not an unprimeable number, because it can be changed into a prime (65873747) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 104247 + ... + 104876.

It is an arithmetic number, because the mean of its divisors is an integer number (5437224).

Almost surely, 2^65873745 is an apocalyptic number.

It is an amenable number.

65873745 is a deficient number, since it is larger than the sum of its proper divisors (64619631).

65873745 is a wasteful number, since it uses less digits than its factorization.

65873745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209141 (or 209138 counting only the distinct ones).

The product of its digits is 705600, while the sum is 45.

The square root of 65873745 is about 8116.2642268472. The cubic root of 65873745 is about 403.8661472885.

The spelling of 65873745 in words is "sixty-five million, eight hundred seventy-three thousand, seven hundred forty-five".