64389007 has 2 divisors, whose sum is σ = 64389008. Its totient is φ = 64389006.

The previous prime is 64388969. The next prime is 64389023. The reversal of 64389007 is 70098346.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 64389007 - 2⁷ = 64388879 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64389067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32194503 + 32194504.

It is an arithmetic number, because the mean of its divisors is an integer number (32194504).

Almost surely, 2^64389007 is an apocalyptic number.

64389007 is a deficient number, since it is larger than the sum of its proper divisors (1).

64389007 is an equidigital number, since it uses as much as digits as its factorization.

64389007 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 64389007 is about 8024.2761044221. The cubic root of 64389007 is about 400.8087947753.

The spelling of 64389007 in words is "sixty-four million, three hundred eighty-nine thousand, seven".