238624853 has 8 divisors (see below), whose sum is σ = 240124248. Its totient is φ = 237129984.

The previous prime is 238624849. The next prime is 238624861. The reversal of 238624853 is 358426832.

It can be written as a sum of positive squares in 4 ways, for example, as 19377604 + 219247249 = 4402^2 + 14807^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 238624853 - 2² = 238624849 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 238624853.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (238621853) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 217775 + ... + 218867.

It is an arithmetic number, because the mean of its divisors is an integer number (30015531).

Almost surely, 2^238624853 is an apocalyptic number.

It is an amenable number.

238624853 is a deficient number, since it is larger than the sum of its proper divisors (1499395).

238624853 is a wasteful number, since it uses less digits than its factorization.

238624853 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2263.

The product of its digits is 276480, while the sum is 41.

The square root of 238624853 is about 15447.4869477207. The cubic root of 238624853 is about 620.2573099508.

The spelling of 238624853 in words is "two hundred thirty-eight million, six hundred twenty-four thousand, eight hundred fifty-three".