258712 has 16 divisors (see below), whose sum is σ = 492840. Its totient is φ = 127296.
The previous prime is 258707. The next prime is 258721. The reversal of 258712 is 217852.
It is a congruent number.
It is an unprimeable number.
258712 is an untouchable number, because it is not equal to the sum of proper divisors of any number.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 363 + ... + 805.
2258712 is an apocalyptic number.
It is an amenable number.
258712 is a deficient number, since it is larger than the sum of its proper divisors (234128).
258712 is a wasteful number, since it uses less digits than its factorization.
258712 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 522 (or 518 counting only the distinct ones).
The product of its digits is 1120, while the sum is 25.
The square root of 258712 is about 508.6373954007. The cubic root of 258712 is about 63.7194753263.
The spelling of 258712 in words is "two hundred fifty-eight thousand, seven hundred twelve".
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