238854987 has 40 divisors (see below), whose sum is σ = 416503296. Its totient is φ = 133569648.

The previous prime is 238854983. The next prime is 238854997. The reversal of 238854987 is 789458832.

It is a happy number.

It is not a de Polignac number, because 238854987 - 2² = 238854983 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (238854983) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 22168 + ... + 31130.

Almost surely, 2^238854987 is an apocalyptic number.

238854987 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

238854987 is a deficient number, since it is larger than the sum of its proper divisors (177648309).

238854987 is an equidigital number, since it uses as much as digits as its factorization.

238854987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9029 (or 9020 counting only the distinct ones).

The product of its digits is 3870720, while the sum is 54.

The square root of 238854987 is about 15454.9340665045. The cubic root of 238854987 is about 620.4566415667.

It can be divided in two parts, 2388 and 54987, that added together give a palindrome (57375).

The spelling of 238854987 in words is "two hundred thirty-eight million, eight hundred fifty-four thousand, nine hundred eighty-seven".