64004655 has 64 divisors (see below), whose sum is σ = 122798592. Its totient is φ = 28055040.

The previous prime is 64004651. The next prime is 64004659. The reversal of 64004655 is 55640046.

64004655 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (64004651) and next prime (64004659).

It is not a de Polignac number, because 64004655 - 2² = 64004651 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64004651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 113404 + ... + 113966.

It is an arithmetic number, because the mean of its divisors is an integer number (1918728).

Almost surely, 2^64004655 is an apocalyptic number.

64004655 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

64004655 is a deficient number, since it is larger than the sum of its proper divisors (58793937).

64004655 is a wasteful number, since it uses less digits than its factorization.

64004655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 648.

The product of its (nonzero) digits is 14400, while the sum is 30.

The square root of 64004655 is about 8000.2909322099. The cubic root of 64004655 is about 400.0096976816.

The spelling of 64004655 in words is "sixty-four million, four thousand, six hundred fifty-five".