258612387 has 16 divisors (see below), whose sum is σ = 383263488. Its totient is φ = 153776480.

The previous prime is 258612383. The next prime is 258612413. The reversal of 258612387 is 783216852.

It is not a de Polignac number, because 258612387 - 2² = 258612383 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (258612383) 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, 72183 + ... + 75680.

It is an arithmetic number, because the mean of its divisors is an integer number (23953968).

Almost surely, 2^258612387 is an apocalyptic number.

258612387 is a deficient number, since it is larger than the sum of its proper divisors (124651101).

258612387 is a wasteful number, since it uses less digits than its factorization.

258612387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147930.

The product of its digits is 161280, while the sum is 42.

The square root of 258612387 is about 16081.4298804553. The cubic root of 258612387 is about 637.1129621479.

The spelling of 258612387 in words is "two hundred fifty-eight million, six hundred twelve thousand, three hundred eighty-seven".