64488445 has 8 divisors (see below), whose sum is σ = 88441344. Its totient is φ = 44220624.

The previous prime is 64488409. The next prime is 64488469. The reversal of 64488445 is 54488446.

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

It is not a de Polignac number, because 64488445 - 2⁷ = 64488317 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 921229 + ... + 921298.

It is an arithmetic number, because the mean of its divisors is an integer number (11055168).

Almost surely, 2^64488445 is an apocalyptic number.

It is an amenable number.

64488445 is a deficient number, since it is larger than the sum of its proper divisors (23952899).

64488445 is a wasteful number, since it uses less digits than its factorization.

64488445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1842539.

The product of its digits is 491520, while the sum is 43.

The square root of 64488445 is about 8030.4697870050. The cubic root of 64488445 is about 401.0150159281.

Subtracting from 64488445 its reverse (54488446), we obtain a palindrome (9999999).

The spelling of 64488445 in words is "sixty-four million, four hundred eighty-eight thousand, four hundred forty-five".