65623361 has 4 divisors (see below), whose sum is σ = 65780400. Its totient is φ = 65466324.

The previous prime is 65623343. The next prime is 65623387. The reversal of 65623361 is 16332656.

65623361 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 65623361 - 2⁶ = 65623297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65623561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77891 + ... + 78728.

It is an arithmetic number, because the mean of its divisors is an integer number (16445100).

Almost surely, 2^65623361 is an apocalyptic number.

It is an amenable number.

65623361 is a deficient number, since it is larger than the sum of its proper divisors (157039).

65623361 is a wasteful number, since it uses less digits than its factorization.

65623361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157038.

The product of its digits is 19440, while the sum is 32.

The square root of 65623361 is about 8100.8247111020. The cubic root of 65623361 is about 403.3538034978.

The spelling of 65623361 in words is "sixty-five million, six hundred twenty-three thousand, three hundred sixty-one".