64912427 has 2 divisors, whose sum is σ = 64912428. Its totient is φ = 64912426.

The previous prime is 64912423. The next prime is 64912429. The reversal of 64912427 is 72421946.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 64912427 - 2² = 64912423 is a prime.

Together with 64912429, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (64912423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32456213 + 32456214.

It is an arithmetic number, because the mean of its divisors is an integer number (32456214).

Almost surely, 2^64912427 is an apocalyptic number.

64912427 is a deficient number, since it is larger than the sum of its proper divisors (1).

64912427 is an equidigital number, since it uses as much as digits as its factorization.

64912427 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 24192, while the sum is 35.

The square root of 64912427 is about 8056.8248708781. The cubic root of 64912427 is about 401.8919270056.

The spelling of 64912427 in words is "sixty-four million, nine hundred twelve thousand, four hundred twenty-seven".