64294645 has 4 divisors (see below), whose sum is σ = 77153580. Its totient is φ = 51435712.

The previous prime is 64294621. The next prime is 64294661. The reversal of 64294645 is 54649246.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 34939921 + 29354724 = 5911^2 + 5418^2 .

It is a cyclic number.

It is not a de Polignac number, because 64294645 - 2⁹ = 64294133 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 64294598 and 64294607.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6429460 + ... + 6429469.

It is an arithmetic number, because the mean of its divisors is an integer number (19288395).

Almost surely, 2^64294645 is an apocalyptic number.

It is an amenable number.

64294645 is a deficient number, since it is larger than the sum of its proper divisors (12858935).

64294645 is a wasteful number, since it uses less digits than its factorization.

64294645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12858934.

The product of its digits is 207360, while the sum is 40.

The square root of 64294645 is about 8018.3941659163. The cubic root of 64294645 is about 400.6129041416.

The spelling of 64294645 in words is "sixty-four million, two hundred ninety-four thousand, six hundred forty-five".