64429567 has 2 divisors, whose sum is σ = 64429568. Its totient is φ = 64429566.

The previous prime is 64429529. The next prime is 64429571. The reversal of 64429567 is 76592446.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 64429567 - 2¹⁹ = 63905279 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64429597) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32214783 + 32214784.

It is an arithmetic number, because the mean of its divisors is an integer number (32214784).

Almost surely, 2^64429567 is an apocalyptic number.

64429567 is a deficient number, since it is larger than the sum of its proper divisors (1).

64429567 is an equidigital number, since it uses as much as digits as its factorization.

64429567 is an evil number, because the sum of its binary digits is even.

The product of its digits is 362880, while the sum is 43.

The square root of 64429567 is about 8026.8030373244. The cubic root of 64429567 is about 400.8929364281.

The spelling of 64429567 in words is "sixty-four million, four hundred twenty-nine thousand, five hundred sixty-seven".