258722 has 4 divisors (see below), whose sum is σ = 388086. Its totient is φ = 129360.

The previous prime is 258721. The next prime is 258733. The reversal of 258722 is 227852.

258722 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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., 201601 + 57121 = 449^2 + 239^2 .

It is a junction number, because it is equal to n+sod(n) for n = 258691 and 258700.

It is not an unprimeable number, because it can be changed into a prime (258721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64679 + ... + 64682.

2²⁵⁸⁷²² is an apocalyptic number.

258722 is a deficient number, since it is larger than the sum of its proper divisors (129364).

258722 is a wasteful number, since it uses less digits than its factorization.

258722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129363.

The product of its digits is 2240, while the sum is 26.

The square root of 258722 is about 508.6472254913. The cubic root of 258722 is about 63.7202962991.

The spelling of 258722 in words is "two hundred fifty-eight thousand, seven hundred twenty-two".