258487957 has 16 divisors (see below), whose sum is σ = 326741632. Its totient is φ = 198987840.

The previous prime is 258487949. The next prime is 258487967. The reversal of 258487957 is 759784852.

It is a cyclic number.

It is not a de Polignac number, because 258487957 - 2³ = 258487949 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 258487898 and 258487907.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (258487967) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35019 + ... + 41752.

It is an arithmetic number, because the mean of its divisors is an integer number (20421352).

Almost surely, 2^258487957 is an apocalyptic number.

It is an amenable number.

258487957 is a deficient number, since it is larger than the sum of its proper divisors (68253675).

258487957 is a wasteful number, since it uses less digits than its factorization.

258487957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76828.

The product of its digits is 5644800, while the sum is 55.

The square root of 258487957 is about 16077.5606669669. The cubic root of 258487957 is about 637.0107645635.

The spelling of 258487957 in words is "two hundred fifty-eight million, four hundred eighty-seven thousand, nine hundred fifty-seven".