64843134 has 32 divisors (see below), whose sum is σ = 141751296. Its totient is φ = 19685760.

The previous prime is 64843133. The next prime is 64843147. The reversal of 64843134 is 43134846.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 64843095 and 64843104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64843133) 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 15 ways as a sum of consecutive naturals, for example, 7092 + ... + 13415.

It is an arithmetic number, because the mean of its divisors is an integer number (4429728).

Almost surely, 2^64843134 is an apocalyptic number.

64843134 is an abundant number, since it is smaller than the sum of its proper divisors (76908162).

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

64843134 is a wasteful number, since it uses less digits than its factorization.

64843134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20560.

The product of its digits is 27648, while the sum is 33.

The square root of 64843134 is about 8052.5234554145. The cubic root of 64843134 is about 401.7488716428.

The spelling of 64843134 in words is "sixty-four million, eight hundred forty-three thousand, one hundred thirty-four".