258238887 has 8 divisors (see below), whose sum is σ = 349035504. Its totient is φ = 169800768.

The previous prime is 258238867. The next prime is 258238889. The reversal of 258238887 is 788832852.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 258238887 - 2¹² = 258234791 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (258238889) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 589368 + ... + 589805.

It is an arithmetic number, because the mean of its divisors is an integer number (43629438).

Almost surely, 2^258238887 is an apocalyptic number.

258238887 is a deficient number, since it is larger than the sum of its proper divisors (90796617).

258238887 is a wasteful number, since it uses less digits than its factorization.

258238887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1179249.

The product of its digits is 1720320, while the sum is 51.

The square root of 258238887 is about 16069.8129111698. The cubic root of 258238887 is about 636.8060983448.

The spelling of 258238887 in words is "two hundred fifty-eight million, two hundred thirty-eight thousand, eight hundred eighty-seven".