238672669 has 2 divisors, whose sum is σ = 238672670. Its totient is φ = 238672668.

The previous prime is 238672657. The next prime is 238672691. The reversal of 238672669 is 966276832.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 224610169 + 14062500 = 14987^2 + 3750^2 .

It is a cyclic number.

It is not a de Polignac number, because 238672669 - 2¹³ = 238664477 is a prime.

It is a super-2 number, since 2×238672669² = 113929285855167122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (238672649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 119336334 + 119336335.

It is an arithmetic number, because the mean of its divisors is an integer number (119336335).

Almost surely, 2^238672669 is an apocalyptic number.

It is an amenable number.

238672669 is a deficient number, since it is larger than the sum of its proper divisors (1).

238672669 is an equidigital number, since it uses as much as digits as its factorization.

238672669 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1306368, while the sum is 49.

The square root of 238672669 is about 15449.0345653054. The cubic root of 238672669 is about 620.2987365421.

The spelling of 238672669 in words is "two hundred thirty-eight million, six hundred seventy-two thousand, six hundred sixty-nine".