238679669 has 2 divisors, whose sum is σ = 238679670. Its totient is φ = 238679668.

The previous prime is 238679659. The next prime is 238679681. The reversal of 238679669 is 966976832.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 221622769 + 17056900 = 14887^2 + 4130^2 .

It is a cyclic number.

It is not a de Polignac number, because 238679669 - 2²⁴ = 221902453 is a prime.

It is a super-2 number, since 2×238679669² = 113935968787899122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (238679659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 119339834 + 119339835.

It is an arithmetic number, because the mean of its divisors is an integer number (119339835).

Almost surely, 2^238679669 is an apocalyptic number.

It is an amenable number.

238679669 is a deficient number, since it is larger than the sum of its proper divisors (1).

238679669 is an equidigital number, since it uses as much as digits as its factorization.

238679669 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5878656, while the sum is 56.

The square root of 238679669 is about 15449.2611150178. The cubic root of 238679669 is about 620.3048007035.

The spelling of 238679669 in words is "two hundred thirty-eight million, six hundred seventy-nine thousand, six hundred sixty-nine".