238885887 has 16 divisors (see below), whose sum is σ = 342289152. Its totient is φ = 147649920.

The previous prime is 238885859. The next prime is 238885891. The reversal of 238885887 is 788588832.

It is not a de Polignac number, because 238885887 - 2¹⁵ = 238853119 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (238885807) 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, 31539 + ... + 38372.

It is an arithmetic number, because the mean of its divisors is an integer number (21393072).

Almost surely, 2^238885887 is an apocalyptic number.

238885887 is a deficient number, since it is larger than the sum of its proper divisors (103403265).

238885887 is a wasteful number, since it uses less digits than its factorization.

238885887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69998.

The product of its digits is 6881280, while the sum is 57.

The square root of 238885887 is about 15455.9337149200. The cubic root of 238885887 is about 620.4833959918.

The spelling of 238885887 in words is "two hundred thirty-eight million, eight hundred eighty-five thousand, eight hundred eighty-seven".