238623537 has 8 divisors (see below), whose sum is σ = 318519136. Its totient is φ = 158905152.

The previous prime is 238623533. The next prime is 238623557. The reversal of 238623537 is 735326832.

238623537 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 238623537 - 2² = 238623533 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 238623495 and 238623504.

It is not an unprimeable number, because it can be changed into a prime (238623533) 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, 41128 + ... + 46569.

It is an arithmetic number, because the mean of its divisors is an integer number (39814892).

Almost surely, 2^238623537 is an apocalyptic number.

It is an amenable number.

238623537 is a deficient number, since it is larger than the sum of its proper divisors (79895599).

238623537 is an equidigital number, since it uses as much as digits as its factorization.

238623537 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88607.

The product of its digits is 181440, while the sum is 39.

The square root of 238623537 is about 15447.4443517366. Note that the first 3 decimals coincide. The cubic root of 238623537 is about 620.2561697230.

The spelling of 238623537 in words is "two hundred thirty-eight million, six hundred twenty-three thousand, five hundred thirty-seven".