64486445 has 8 divisors (see below), whose sum is σ = 77505120. Its totient is φ = 51508240.

The previous prime is 64486441. The next prime is 64486447. The reversal of 64486445 is 54468446.

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

It is not a de Polignac number, because 64486445 - 2² = 64486441 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64486441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6491 + ... + 13080.

It is an arithmetic number, because the mean of its divisors is an integer number (9688140).

Almost surely, 2^64486445 is an apocalyptic number.

It is an amenable number.

64486445 is a deficient number, since it is larger than the sum of its proper divisors (13018675).

64486445 is a wasteful number, since it uses less digits than its factorization.

64486445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20235.

The product of its digits is 368640, while the sum is 41.

The square root of 64486445 is about 8030.3452603235. The cubic root of 64486445 is about 401.0108702845.

The spelling of 64486445 in words is "sixty-four million, four hundred eighty-six thousand, four hundred forty-five".