64008445 has 4 divisors (see below), whose sum is σ = 76810140. Its totient is φ = 51206752.

The previous prime is 64008437. The next prime is 64008479. The reversal of 64008445 is 54480046.

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 29127609 + 34880836 = 5397^2 + 5906^2 .

It is a cyclic number.

It is not a de Polignac number, because 64008445 - 2³ = 64008437 is a prime.

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, 6400840 + ... + 6400849.

It is an arithmetic number, because the mean of its divisors is an integer number (19202535).

Almost surely, 2^64008445 is an apocalyptic number.

It is an amenable number.

64008445 is a deficient number, since it is larger than the sum of its proper divisors (12801695).

64008445 is a wasteful number, since it uses less digits than its factorization.

64008445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12801694.

The product of its (nonzero) digits is 15360, while the sum is 31.

The square root of 64008445 is about 8000.5277950895. The cubic root of 64008445 is about 400.0175929762.

The spelling of 64008445 in words is "sixty-four million, eight thousand, four hundred forty-five".