64212923 has 2 divisors, whose sum is σ = 64212924. Its totient is φ = 64212922.

The previous prime is 64212887. The next prime is 64212937. The reversal of 64212923 is 32921246.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 64212923 - 2⁸ = 64212667 is a prime.

It is not a weakly prime, because it can be changed into another prime (64212523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32106461 + 32106462.

It is an arithmetic number, because the mean of its divisors is an integer number (32106462).

Almost surely, 2^64212923 is an apocalyptic number.

64212923 is a deficient number, since it is larger than the sum of its proper divisors (1).

64212923 is an equidigital number, since it uses as much as digits as its factorization.

64212923 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5184, while the sum is 29.

The square root of 64212923 is about 8013.2966374645. The cubic root of 64212923 is about 400.4430985613.

The spelling of 64212923 in words is "sixty-four million, two hundred twelve thousand, nine hundred twenty-three".