258616 has 8 divisors (see below), whose sum is σ = 484920. Its totient is φ = 129304.

The previous prime is 258613. The next prime is 258617. The reversal of 258616 is 616852.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (258611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16156 + ... + 16171.

It is an arithmetic number, because the mean of its divisors is an integer number (60615).

2²⁵⁸⁶¹⁶ is an apocalyptic number.

It is an amenable number.

258616 is a deficient number, since it is larger than the sum of its proper divisors (226304).

258616 is a wasteful number, since it uses less digits than its factorization.

258616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32333 (or 32329 counting only the distinct ones).

The product of its digits is 2880, while the sum is 28.

The square root of 258616 is about 508.5430168629. The cubic root of 258616 is about 63.7115929109.

The spelling of 258616 in words is "two hundred fifty-eight thousand, six hundred sixteen".