64843634 has 8 divisors (see below), whose sum is σ = 97417728. Its totient is φ = 32371060.

The previous prime is 64843633. The next prime is 64843643. The reversal of 64843634 is 43634846.

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

It is not an unprimeable number, because it can be changed into a prime (64843631) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23762 + ... + 26349.

It is an arithmetic number, because the mean of its divisors is an integer number (12177216).

Almost surely, 2^64843634 is an apocalyptic number.

64843634 is a deficient number, since it is larger than the sum of its proper divisors (32574094).

64843634 is a wasteful number, since it uses less digits than its factorization.

64843634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50760.

The product of its digits is 165888, while the sum is 38.

The square root of 64843634 is about 8052.5545015231. The cubic root of 64843634 is about 401.7499042575.

The spelling of 64843634 in words is "sixty-four million, eight hundred forty-three thousand, six hundred thirty-four".