64234505 has 16 divisors (see below), whose sum is σ = 78693120. Its totient is φ = 50324352.

The previous prime is 64234501. The next prime is 64234529. The reversal of 64234505 is 50543246.

It is a cyclic number.

It is not a de Polignac number, because 64234505 - 2² = 64234501 is a prime.

It is not an unprimeable number, because it can be changed into a prime (64234501) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53522 + ... + 54708.

It is an arithmetic number, because the mean of its divisors is an integer number (4918320).

Almost surely, 2^64234505 is an apocalyptic number.

It is an amenable number.

64234505 is a deficient number, since it is larger than the sum of its proper divisors (14458615).

64234505 is a wasteful number, since it uses less digits than its factorization.

64234505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1408.

The product of its (nonzero) digits is 14400, while the sum is 29.

The square root of 64234505 is about 8014.6431611145. The cubic root of 64234505 is about 400.4879565872.

The spelling of 64234505 in words is "sixty-four million, two hundred thirty-four thousand, five hundred five".