65472239 has 8 divisors (see below), whose sum is σ = 75328800. Its totient is φ = 55741536.

The previous prime is 65472221. The next prime is 65472257. The reversal of 65472239 is 93227456.

It is an interprime number because it is at equal distance from previous prime (65472221) and next prime (65472257).

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-65472239 is a prime.

It is a super-2 number, since 2×65472239² = 8573228159346242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65472289) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30344 + ... + 32429.

It is an arithmetic number, because the mean of its divisors is an integer number (9416100).

Almost surely, 2^65472239 is an apocalyptic number.

65472239 is a deficient number, since it is larger than the sum of its proper divisors (9856561).

65472239 is a wasteful number, since it uses less digits than its factorization.

65472239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62929.

The product of its digits is 90720, while the sum is 38.

The square root of 65472239 is about 8091.4917660466. The cubic root of 65472239 is about 403.0439418700.

The spelling of 65472239 in words is "sixty-five million, four hundred seventy-two thousand, two hundred thirty-nine".