238713987 has 16 divisors (see below), whose sum is σ = 339194880. Its totient is φ = 148982592.

The previous prime is 238713977. The next prime is 238714001. The reversal of 238713987 is 789317832.

It is not a de Polignac number, because 238713987 - 2⁴ = 238713971 is a prime.

It is not an unprimeable number, because it can be changed into a prime (238713977) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33562 + ... + 40047.

It is an arithmetic number, because the mean of its divisors is an integer number (21199680).

Almost surely, 2^238713987 is an apocalyptic number.

238713987 is a deficient number, since it is larger than the sum of its proper divisors (100480893).

238713987 is a wasteful number, since it uses less digits than its factorization.

238713987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73682.

The product of its digits is 508032, while the sum is 48.

The square root of 238713987 is about 15450.3717431006. The cubic root of 238713987 is about 620.3345289721.

The spelling of 238713987 in words is "two hundred thirty-eight million, seven hundred thirteen thousand, nine hundred eighty-seven".