64430206 has 4 divisors (see below), whose sum is σ = 96645312. Its totient is φ = 32215102.

The previous prime is 64430189. The next prime is 64430207. The reversal of 64430206 is 60203446.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 60203446 = 2 ⋅30101723.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64430207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16107550 + ... + 16107553.

It is an arithmetic number, because the mean of its divisors is an integer number (24161328).

Almost surely, 2^64430206 is an apocalyptic number.

64430206 is a deficient number, since it is larger than the sum of its proper divisors (32215106).

64430206 is a wasteful number, since it uses less digits than its factorization.

64430206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32215105.

The product of its (nonzero) digits is 3456, while the sum is 25.

The square root of 64430206 is about 8026.8428413667. The cubic root of 64430206 is about 400.8942617499.

The spelling of 64430206 in words is "sixty-four million, four hundred thirty thousand, two hundred six".