238485887 has 2 divisors, whose sum is σ = 238485888. Its totient is φ = 238485886.

The previous prime is 238485859. The next prime is 238485917. The reversal of 238485887 is 788584832.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 238485887 - 2¹⁸ = 238223743 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (238485287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 119242943 + 119242944.

It is an arithmetic number, because the mean of its divisors is an integer number (119242944).

Almost surely, 2^238485887 is an apocalyptic number.

238485887 is a deficient number, since it is larger than the sum of its proper divisors (1).

238485887 is an equidigital number, since it uses as much as digits as its factorization.

238485887 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3440640, while the sum is 53.

The square root of 238485887 is about 15442.9882794749. The cubic root of 238485887 is about 620.1368818481.

The spelling of 238485887 in words is "two hundred thirty-eight million, four hundred eighty-five thousand, eight hundred eighty-seven".