258715469 has 8 divisors (see below), whose sum is σ = 274541688. Its totient is φ = 242956800.

The previous prime is 258715463. The next prime is 258715481. The reversal of 258715469 is 964517852.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 141253225 + 117462244 = 11885^2 + 10838^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 258715469 - 2¹⁶ = 258649933 is a prime.

It is a super-2 number, since 2×258715469² = 133867387799779922, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (258715463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8882 + ... + 24419.

It is an arithmetic number, because the mean of its divisors is an integer number (34317711).

Almost surely, 2^258715469 is an apocalyptic number.

It is an amenable number.

258715469 is a deficient number, since it is larger than the sum of its proper divisors (15826219).

258715469 is a wasteful number, since it uses less digits than its factorization.

258715469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33775.

The product of its digits is 604800, while the sum is 47.

The square root of 258715469 is about 16084.6345622150. The cubic root of 258715469 is about 637.1976012418.

The spelling of 258715469 in words is "two hundred fifty-eight million, seven hundred fifteen thousand, four hundred sixty-nine".