65233247 has 4 divisors (see below), whose sum is σ = 65260440. Its totient is φ = 65206056.

The previous prime is 65233241. The next prime is 65233249. The reversal of 65233247 is 74233256.

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

It is a cyclic number.

It is not a de Polignac number, because 65233247 - 2¹⁴ = 65216863 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 (65233241) 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, 9608 + ... + 14925.

It is an arithmetic number, because the mean of its divisors is an integer number (16315110).

Almost surely, 2^65233247 is an apocalyptic number.

65233247 is a deficient number, since it is larger than the sum of its proper divisors (27193).

65233247 is a wasteful number, since it uses less digits than its factorization.

65233247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27192.

The product of its digits is 30240, while the sum is 32.

The square root of 65233247 is about 8076.7101594647. The cubic root of 65233247 is about 402.5529362111.

Subtracting 65233247 from its reverse (74233256), we obtain a palindrome (9000009).

The spelling of 65233247 in words is "sixty-five million, two hundred thirty-three thousand, two hundred forty-seven".