258996 has 24 divisors (see below), whose sum is σ = 612864. Its totient is φ = 85120.

The previous prime is 258991. The next prime is 259001. The reversal of 258996 is 699852.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (258991) and next prime (259001).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (258991) 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, 1261 + ... + 1451.

It is an arithmetic number, because the mean of its divisors is an integer number (25536).

2²⁵⁸⁹⁹⁶ is an apocalyptic number.

It is an amenable number.

258996 is an abundant number, since it is smaller than the sum of its proper divisors (353868).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

258996 is a wasteful number, since it uses less digits than its factorization.

With its predecessor (258995) it forms an eRAP, since the sums of their prime factors are consecutive (310 and 311).

258996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311 (or 309 counting only the distinct ones).

The product of its digits is 38880, while the sum is 39.

The square root of 258996 is about 508.9164960973. The cubic root of 258996 is about 63.7427827277.

Subtracting from 258996 its product of digits (38880), we obtain a triangular number (220116 = T₆₆₃).

The spelling of 258996 in words is "two hundred fifty-eight thousand, nine hundred ninety-six".