65730623 has 8 divisors (see below), whose sum is σ = 75169920. Its totient is φ = 56303640.

The previous prime is 65730601. The next prime is 65730629. The reversal of 65730623 is 32603756.

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

It is a cyclic number.

It is not a de Polignac number, because 65730623 - 2¹⁴ = 65714239 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 65730623.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65730629) 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, 18068 + ... + 21398.

It is an arithmetic number, because the mean of its divisors is an integer number (9396240).

Almost surely, 2^65730623 is an apocalyptic number.

65730623 is a deficient number, since it is larger than the sum of its proper divisors (9439297).

65730623 is a wasteful number, since it uses less digits than its factorization.

65730623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6157.

The product of its (nonzero) digits is 22680, while the sum is 32.

The square root of 65730623 is about 8107.4424450624. The cubic root of 65730623 is about 403.5734457324.

The spelling of 65730623 in words is "sixty-five million, seven hundred thirty thousand, six hundred twenty-three".