64908238 has 4 divisors (see below), whose sum is σ = 97362360. Its totient is φ = 32454118.

The previous prime is 64908211. The next prime is 64908247. The reversal of 64908238 is 83280946.

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

It is a self number, because there is not a number n which added to its sum of digits gives 64908238.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16227058 + ... + 16227061.

It is an arithmetic number, because the mean of its divisors is an integer number (24340590).

Almost surely, 2^64908238 is an apocalyptic number.

64908238 is a deficient number, since it is larger than the sum of its proper divisors (32454122).

64908238 is a wasteful number, since it uses less digits than its factorization.

64908238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32454121.

The product of its (nonzero) digits is 82944, while the sum is 40.

The square root of 64908238 is about 8056.5649007502. The cubic root of 64908238 is about 401.8832817093.

The spelling of 64908238 in words is "sixty-four million, nine hundred eight thousand, two hundred thirty-eight".