238706747 has 8 divisors (see below), whose sum is σ = 252326400. Its totient is φ = 225192744.

The previous prime is 238706731. The next prime is 238706771. The reversal of 238706747 is 747607832.

238706747 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 a cyclic number.

It is not a de Polignac number, because 238706747 - 2⁴ = 238706731 is a prime.

It is a super-2 number, since 2×238706747² = 113961822126644018, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 238706698 and 238706707.

It is not an unprimeable number, because it can be changed into a prime (238706777) 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, 21743 + ... + 30824.

It is an arithmetic number, because the mean of its divisors is an integer number (31540800).

Almost surely, 2^238706747 is an apocalyptic number.

238706747 is a deficient number, since it is larger than the sum of its proper divisors (13619653).

238706747 is a wasteful number, since it uses less digits than its factorization.

238706747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52825.

The product of its (nonzero) digits is 395136, while the sum is 44.

The square root of 238706747 is about 15450.1374427544. The cubic root of 238706747 is about 620.3282574957.

The spelling of 238706747 in words is "two hundred thirty-eight million, seven hundred six thousand, seven hundred forty-seven".