64356 has 24 divisors (see below), whose sum is σ = 155904. Its totient is φ = 20640.

The previous prime is 64333. The next prime is 64373. The reversal of 64356 is 65346.

It is a nialpdrome in base 16.

It is a congruent number.

It is an unprimeable number.

64356 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 286 + ... + 458.

It is an arithmetic number, because the mean of its divisors is an integer number (6496).

2⁶⁴³⁵⁶ is an apocalyptic number.

It is an amenable number.

64356 is an abundant number, since it is smaller than the sum of its proper divisors (91548).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77952).

64356 is a wasteful number, since it uses less digits than its factorization.

64356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211 (or 209 counting only the distinct ones).

The product of its digits is 2160, while the sum is 24.

The square root of 64356 is about 253.6848438516. The cubic root of 64356 is about 40.0740295727.

Subtracting 64356 from its reverse (65346), we obtain a triangular number (990 = T₄₄).

It can be divided in two parts, 6435 and 6, that added together give a triangular number (6441 = T₁₁₃).

The spelling of 64356 in words is "sixty-four thousand, three hundred fifty-six".