258994 has 4 divisors (see below), whose sum is σ = 388494. Its totient is φ = 129496.

The previous prime is 258991. The next prime is 259001. The reversal of 258994 is 499852.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 255025 + 3969 = 505^2 + 63^2 .

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 as a sum of consecutive naturals, namely, 64747 + ... + 64750.

2²⁵⁸⁹⁹⁴ is an apocalyptic number.

258994 is a deficient number, since it is larger than the sum of its proper divisors (129500).

258994 is a wasteful number, since it uses less digits than its factorization.

258994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129499.

The product of its digits is 25920, while the sum is 37.

The square root of 258994 is about 508.9145311346. The cubic root of 258994 is about 63.7426186507.

It can be divided in two parts, 2 and 58994, that added together give a triangular number (58996 = T₃₄₃).

The spelling of 258994 in words is "two hundred fifty-eight thousand, nine hundred ninety-four".