238623417 has 6 divisors (see below), whose sum is σ = 344678282. Its totient is φ = 159082272.

The previous prime is 238623409. The next prime is 238623419. The reversal of 238623417 is 714326832.

It is a happy number.

238623417 is a `hidden beast` number, since 23 + 8 + 623 + 4 + 1 + 7 = 666.

It can be written as a sum of positive squares in only one way, i.e., 163558521 + 75064896 = 12789^2 + 8664^2 .

It is not a de Polignac number, because 238623417 - 2³ = 238623409 is a prime.

It is a super-2 number, since 2×238623417² = 113882270281511778, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (238623419) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 13256848 + ... + 13256865.

Almost surely, 2^238623417 is an apocalyptic number.

It is an amenable number.

238623417 is a deficient number, since it is larger than the sum of its proper divisors (106054865).

238623417 is a wasteful number, since it uses less digits than its factorization.

238623417 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26513719 (or 26513716 counting only the distinct ones).

The product of its digits is 48384, while the sum is 36.

The square root of 238623417 is about 15447.4404675985. The cubic root of 238623417 is about 620.2560657506.

The spelling of 238623417 in words is "two hundred thirty-eight million, six hundred twenty-three thousand, four hundred seventeen".