65274973 has 4 divisors (see below), whose sum is σ = 65293180. Its totient is φ = 65256768.

The previous prime is 65274949. The next prime is 65274997. The reversal of 65274973 is 37947256.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (65274949) and next prime (65274997).

It can be written as a sum of positive squares in 2 ways, for example, as 31843449 + 33431524 = 5643^2 + 5782^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-65274973 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65277973) 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, 1740 + ... + 11557.

It is an arithmetic number, because the mean of its divisors is an integer number (16323295).

Almost surely, 2^65274973 is an apocalyptic number.

It is an amenable number.

65274973 is a deficient number, since it is larger than the sum of its proper divisors (18207).

65274973 is a wasteful number, since it uses less digits than its factorization.

65274973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18206.

The product of its digits is 317520, while the sum is 43.

The square root of 65274973 is about 8079.2928527192. The cubic root of 65274973 is about 402.6387479943.

It can be divided in two parts, 652 and 74973, that added together give a square (75625 = 275²).

The spelling of 65274973 in words is "sixty-five million, two hundred seventy-four thousand, nine hundred seventy-three".