64430223 has 32 divisors (see below), whose sum is σ = 101993472. Its totient is φ = 35664000.

The previous prime is 64430207. The next prime is 64430231. The reversal of 64430223 is 32203446.

It is a happy number.

It is not a de Polignac number, because 64430223 - 2⁴ = 64430207 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 64430193 and 64430202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64430263) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 42586 + ... + 44072.

It is an arithmetic number, because the mean of its divisors is an integer number (3187296).

Almost surely, 2^64430223 is an apocalyptic number.

64430223 is a deficient number, since it is larger than the sum of its proper divisors (37563249).

64430223 is a wasteful number, since it uses less digits than its factorization.

64430223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1615.

The product of its (nonzero) digits is 3456, while the sum is 24.

The square root of 64430223 is about 8026.8439003135. The cubic root of 64430223 is about 400.8942970088.

Adding to 64430223 its reverse (32203446), we get a palindrome (96633669).

The spelling of 64430223 in words is "sixty-four million, four hundred thirty thousand, two hundred twenty-three".