65672223 has 8 divisors (see below), whose sum is σ = 89599488. Its totient is φ = 42763224.

The previous prime is 65672221. The next prime is 65672237. The reversal of 65672223 is 32227656.

It is a happy number.

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

It is not a de Polignac number, because 65672223 - 2¹ = 65672221 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65672221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 254415 + ... + 254672.

It is an arithmetic number, because the mean of its divisors is an integer number (11199936).

Almost surely, 2^65672223 is an apocalyptic number.

65672223 is a deficient number, since it is larger than the sum of its proper divisors (23927265).

65672223 is a wasteful number, since it uses less digits than its factorization.

65672223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 509133.

The product of its digits is 30240, while the sum is 33.

The square root of 65672223 is about 8103.8400156963. The cubic root of 65672223 is about 403.4538887098.

Adding to 65672223 its reverse (32227656), we get a palindrome (97899879).

The spelling of 65672223 in words is "sixty-five million, six hundred seventy-two thousand, two hundred twenty-three".