258791896 has 48 divisors (see below), whose sum is σ = 538841520. Its totient is φ = 116424000.

The previous prime is 258791893. The next prime is 258791903. The reversal of 258791896 is 698197852.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (258791893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 96445 + ... + 99091.

It is an arithmetic number, because the mean of its divisors is an integer number (11225865).

Almost surely, 2^258791896 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 258791896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (269420760).

258791896 is an abundant number, since it is smaller than the sum of its proper divisors (280049624).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

258791896 is a wasteful number, since it uses less digits than its factorization.

258791896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2776 (or 2761 counting only the distinct ones).

The product of its digits is 2177280, while the sum is 55.

The square root of 258791896 is about 16087.0101634828. The cubic root of 258791896 is about 637.2603398000.

The spelling of 258791896 in words is "two hundred fifty-eight million, seven hundred ninety-one thousand, eight hundred ninety-six".