64073005 has 4 divisors (see below), whose sum is σ = 76887612. Its totient is φ = 51258400.

The previous prime is 64073003. The next prime is 64073033. The reversal of 64073005 is 50037046.

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 7912969 + 56160036 = 2813^2 + 7494^2 .

It is not a de Polignac number, because 64073005 - 2¹ = 64073003 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64073003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6407296 + ... + 6407305.

It is an arithmetic number, because the mean of its divisors is an integer number (19221903).

Almost surely, 2^64073005 is an apocalyptic number.

It is an amenable number.

64073005 is a deficient number, since it is larger than the sum of its proper divisors (12814607).

64073005 is a wasteful number, since it uses less digits than its factorization.

64073005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12814606.

The product of its (nonzero) digits is 2520, while the sum is 25.

The square root of 64073005 is about 8004.5615120380. The cubic root of 64073005 is about 400.1520359553.

The spelling of 64073005 in words is "sixty-four million, seventy-three thousand, five".