64430207 has 2 divisors, whose sum is σ = 64430208. Its totient is φ = 64430206.

The previous prime is 64430189. The next prime is 64430231. The reversal of 64430207 is 70203446.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 64430207 - 2¹⁸ = 64168063 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64430287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32215103 + 32215104.

It is an arithmetic number, because the mean of its divisors is an integer number (32215104).

Almost surely, 2^64430207 is an apocalyptic number.

64430207 is a deficient number, since it is larger than the sum of its proper divisors (1).

64430207 is an equidigital number, since it uses as much as digits as its factorization.

64430207 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4032, while the sum is 26.

The square root of 64430207 is about 8026.8429036577. The cubic root of 64430207 is about 400.8942638240.

The spelling of 64430207 in words is "sixty-four million, four hundred thirty thousand, two hundred seven".