258773 has 4 divisors (see below), whose sum is σ = 270048. Its totient is φ = 247500.

The previous prime is 258763. The next prime is 258779. The reversal of 258773 is 377852.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-258773 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (258779) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5603 + ... + 5648.

It is an arithmetic number, because the mean of its divisors is an integer number (67512).

2²⁵⁸⁷⁷³ is an apocalyptic number.

258773 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

258773 is a deficient number, since it is larger than the sum of its proper divisors (11275).

258773 is a wasteful number, since it uses less digits than its factorization.

258773 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11274.

The product of its digits is 11760, while the sum is 32.

The square root of 258773 is about 508.6973559986. The cubic root of 258773 is about 63.7244829314.

The spelling of 258773 in words is "two hundred fifty-eight thousand, seven hundred seventy-three".