64224307 has 4 divisors (see below), whose sum is σ = 73399216. Its totient is φ = 55049400.

The previous prime is 64224301. The next prime is 64224361. The reversal of 64224307 is 70342246.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 64224307 - 2⁷ = 64224179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64224301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4587444 + ... + 4587457.

It is an arithmetic number, because the mean of its divisors is an integer number (18349804).

Almost surely, 2^64224307 is an apocalyptic number.

64224307 is a deficient number, since it is larger than the sum of its proper divisors (9174909).

64224307 is an equidigital number, since it uses as much as digits as its factorization.

64224307 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9174908.

The product of its (nonzero) digits is 8064, while the sum is 28.

The square root of 64224307 is about 8014.0069253776. The cubic root of 64224307 is about 400.4667613727.

The spelling of 64224307 in words is "sixty-four million, two hundred twenty-four thousand, three hundred seven".