64338838 has 4 divisors (see below), whose sum is σ = 96508260. Its totient is φ = 32169418.

The previous prime is 64338823. The next prime is 64338877. The reversal of 64338838 is 83883346.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 64338794 and 64338803.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16084708 + ... + 16084711.

It is an arithmetic number, because the mean of its divisors is an integer number (24127065).

Almost surely, 2^64338838 is an apocalyptic number.

64338838 is a deficient number, since it is larger than the sum of its proper divisors (32169422).

64338838 is a wasteful number, since it uses less digits than its factorization.

64338838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32169421.

The product of its digits is 331776, while the sum is 43.

The square root of 64338838 is about 8021.1494188801. The cubic root of 64338838 is about 400.7046703702.

The spelling of 64338838 in words is "sixty-four million, three hundred thirty-eight thousand, eight hundred thirty-eight".