64481005 has 8 divisors (see below), whose sum is σ = 77702400. Its totient is φ = 51368016.

The previous prime is 64480979. The next prime is 64481009. The reversal of 64481005 is 50018446.

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

It is a cyclic number.

It is not a de Polignac number, because 64481005 - 2¹¹ = 64478957 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64481009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25785 + ... + 28174.

It is an arithmetic number, because the mean of its divisors is an integer number (9712800).

Almost surely, 2^64481005 is an apocalyptic number.

It is an amenable number.

64481005 is a deficient number, since it is larger than the sum of its proper divisors (13221395).

64481005 is a wasteful number, since it uses less digits than its factorization.

64481005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54203.

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 64481005 is about 8030.0065379799. The cubic root of 64481005 is about 400.9995937003. Note that the first 3 decimals are identical.

The spelling of 64481005 in words is "sixty-four million, four hundred eighty-one thousand, five".