64447466 has 8 divisors (see below), whose sum is σ = 97995684. Its totient is φ = 31782240.

The previous prime is 64447463. The next prime is 64447469. The reversal of 64447466 is 66474446.

It is an interprime number because it is at equal distance from previous prime (64447463) and next prime (64447469).

It can be written as a sum of positive squares in 2 ways, for example, as 63760225 + 687241 = 7985^2 + 829^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (64447463) 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, 220565 + ... + 220856.

Almost surely, 2^64447466 is an apocalyptic number.

64447466 is a deficient number, since it is larger than the sum of its proper divisors (33548218).

64447466 is a wasteful number, since it uses less digits than its factorization.

64447466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 441496.

The product of its digits is 387072, while the sum is 41.

The square root of 64447466 is about 8027.9179118872. The cubic root of 64447466 is about 400.9300566439.

The spelling of 64447466 in words is "sixty-four million, four hundred forty-seven thousand, four hundred sixty-six".