64011923 has 2 divisors, whose sum is σ = 64011924. Its totient is φ = 64011922.

The previous prime is 64011889. The next prime is 64011929. The reversal of 64011923 is 32911046.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 64011923 - 2¹⁶ = 63946387 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 64011892 and 64011901.

It is not a weakly prime, because it can be changed into another prime (64011929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32005961 + 32005962.

It is an arithmetic number, because the mean of its divisors is an integer number (32005962).

Almost surely, 2^64011923 is an apocalyptic number.

64011923 is a deficient number, since it is larger than the sum of its proper divisors (1).

64011923 is an equidigital number, since it uses as much as digits as its factorization.

64011923 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 64011923 is about 8000.7451527967. The cubic root of 64011923 is about 400.0248380410.

Adding to 64011923 its reverse (32911046), we get a palindrome (96922969).

The spelling of 64011923 in words is "sixty-four million, eleven thousand, nine hundred twenty-three".