238506667 has 12 divisors (see below), whose sum is σ = 281591400. Its totient is φ = 201380256.

The previous prime is 238506661. The next prime is 238506673. The reversal of 238506667 is 766605832.

It is an interprime number because it is at equal distance from previous prime (238506661) and next prime (238506673).

It is not a de Polignac number, because 238506667 - 2⁷ = 238506539 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (238506661) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33042 + ... + 39607.

It is an arithmetic number, because the mean of its divisors is an integer number (23465950).

Almost surely, 2^238506667 is an apocalyptic number.

238506667 is a deficient number, since it is larger than the sum of its proper divisors (43084733).

238506667 is an equidigital number, since it uses as much as digits as its factorization.

238506667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72730 (or 72723 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 43.

The square root of 238506667 is about 15443.6610620669. The cubic root of 238506667 is about 620.1548927953.

The spelling of 238506667 in words is "two hundred thirty-eight million, five hundred six thousand, six hundred sixty-seven".