64429907 has 2 divisors, whose sum is σ = 64429908. Its totient is φ = 64429906.

The previous prime is 64429891. The next prime is 64429921. The reversal of 64429907 is 70992446.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 64429907 - 2⁴ = 64429891 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (64429957) 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, 32214953 + 32214954.

It is an arithmetic number, because the mean of its divisors is an integer number (32214954).

Almost surely, 2^64429907 is an apocalyptic number.

64429907 is a deficient number, since it is larger than the sum of its proper divisors (1).

64429907 is an equidigital number, since it uses as much as digits as its factorization.

64429907 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108864, while the sum is 41.

The square root of 64429907 is about 8026.8242163386. The cubic root of 64429907 is about 400.8936416082.

The spelling of 64429907 in words is "sixty-four million, four hundred twenty-nine thousand, nine hundred seven".