64494233 has 8 divisors (see below), whose sum is σ = 65332680. Its totient is φ = 63659520.

The previous prime is 64494223. The next prime is 64494239. The reversal of 64494233 is 33249446.

64494233 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 23687689 + 40806544 = 4867^2 + 6388^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 64494233 - 2⁴ = 64494217 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 64494193 and 64494202.

It is not an unprimeable number, because it can be changed into a prime (64494239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51863 + ... + 53091.

It is an arithmetic number, because the mean of its divisors is an integer number (8166585).

Almost surely, 2^64494233 is an apocalyptic number.

It is an amenable number.

64494233 is a deficient number, since it is larger than the sum of its proper divisors (838447).

64494233 is a wasteful number, since it uses less digits than its factorization.

64494233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1867.

The product of its digits is 62208, while the sum is 35.

The square root of 64494233 is about 8030.8301563412. The cubic root of 64494233 is about 401.0270129376.

The spelling of 64494233 in words is "sixty-four million, four hundred ninety-four thousand, two hundred thirty-three".