65934213 has 4 divisors (see below), whose sum is σ = 87912288. Its totient is φ = 43956140.

The previous prime is 65934133. The next prime is 65934217. The reversal of 65934213 is 31243956.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 65934213 - 2¹⁸ = 65672069 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65934217) 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, 10989033 + ... + 10989038.

It is an arithmetic number, because the mean of its divisors is an integer number (21978072).

Almost surely, 2^65934213 is an apocalyptic number.

It is an amenable number.

65934213 is a deficient number, since it is larger than the sum of its proper divisors (21978075).

65934213 is a wasteful number, since it uses less digits than its factorization.

65934213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21978074.

The product of its digits is 19440, while the sum is 33.

The square root of 65934213 is about 8119.9884852135. The cubic root of 65934213 is about 403.9896841630.

The spelling of 65934213 in words is "sixty-five million, nine hundred thirty-four thousand, two hundred thirteen".