64955923 has 2 divisors, whose sum is σ = 64955924. Its totient is φ = 64955922.

The previous prime is 64955921. The next prime is 64955939. The reversal of 64955923 is 32955946.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 64955923 - 2¹ = 64955921 is a prime.

Together with 64955921, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 64955923.

It is not a weakly prime, because it can be changed into another prime (64955921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32477961 + 32477962.

It is an arithmetic number, because the mean of its divisors is an integer number (32477962).

Almost surely, 2^64955923 is an apocalyptic number.

64955923 is a deficient number, since it is larger than the sum of its proper divisors (1).

64955923 is an equidigital number, since it uses as much as digits as its factorization.

64955923 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 291600, while the sum is 43.

The square root of 64955923 is about 8059.5237452346. The cubic root of 64955923 is about 401.9816724729.

The spelling of 64955923 in words is "sixty-four million, nine hundred fifty-five thousand, nine hundred twenty-three".