64430089 has 4 divisors (see below), whose sum is σ = 64609920. Its totient is φ = 64250260.

The previous prime is 64430087. The next prime is 64430099. The reversal of 64430089 is 98003446.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 64430089 - 2¹ = 64430087 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64430087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 89377 + ... + 90094.

It is an arithmetic number, because the mean of its divisors is an integer number (16152480).

Almost surely, 2^64430089 is an apocalyptic number.

It is an amenable number.

64430089 is a deficient number, since it is larger than the sum of its proper divisors (179831).

64430089 is a wasteful number, since it uses less digits than its factorization.

64430089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179830.

The product of its (nonzero) digits is 20736, while the sum is 34.

The square root of 64430089 is about 8026.8355533174. The cubic root of 64430089 is about 400.8940190860.

The spelling of 64430089 in words is "sixty-four million, four hundred thirty thousand, eighty-nine".