64084445 has 4 divisors (see below), whose sum is σ = 76901340. Its totient is φ = 51267552.

The previous prime is 64084429. The next prime is 64084457. The reversal of 64084445 is 54448046.

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 21325924 + 42758521 = 4618^2 + 6539^2 .

It is a cyclic number.

It is not a de Polignac number, because 64084445 - 2⁴ = 64084429 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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, 6408440 + ... + 6408449.

It is an arithmetic number, because the mean of its divisors is an integer number (19225335).

Almost surely, 2^64084445 is an apocalyptic number.

It is an amenable number.

64084445 is a deficient number, since it is larger than the sum of its proper divisors (12816895).

64084445 is a wasteful number, since it uses less digits than its factorization.

64084445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12816894.

The product of its (nonzero) digits is 61440, while the sum is 35.

The square root of 64084445 is about 8005.2760726911. The cubic root of 64084445 is about 400.1758497642.

The spelling of 64084445 in words is "sixty-four million, eighty-four thousand, four hundred forty-five".