64129379 has 2 divisors, whose sum is σ = 64129380. Its totient is φ = 64129378.

The previous prime is 64129367. The next prime is 64129381. The reversal of 64129379 is 97392146.

64129379 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 64129379 - 2²⁴ = 47352163 is a prime.

It is a super-2 number, since 2×64129379² = 8225154501851282, which contains 22 as substring.

Together with 64129381, 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 (64129309) 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 as a sum of consecutive naturals, namely, 32064689 + 32064690.

It is an arithmetic number, because the mean of its divisors is an integer number (32064690).

Almost surely, 2^64129379 is an apocalyptic number.

64129379 is a deficient number, since it is larger than the sum of its proper divisors (1).

64129379 is an equidigital number, since it uses as much as digits as its factorization.

64129379 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 81648, while the sum is 41.

The square root of 64129379 is about 8008.0821049737. The cubic root of 64129379 is about 400.2693581581.

The spelling of 64129379 in words is "sixty-four million, one hundred twenty-nine thousand, three hundred seventy-nine".