258212447 has 4 divisors (see below), whose sum is σ = 258354096. Its totient is φ = 258070800.

The previous prime is 258212443. The next prime is 258212453. The reversal of 258212447 is 744212852.

258212447 is digitally balanced in base 2, 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 is a cyclic number.

It is not a de Polignac number, because 258212447 - 2² = 258212443 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (258212441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68054 + ... + 71747.

It is an arithmetic number, because the mean of its divisors is an integer number (64588524).

Almost surely, 2^258212447 is an apocalyptic number.

258212447 is a deficient number, since it is larger than the sum of its proper divisors (141649).

258212447 is a wasteful number, since it uses less digits than its factorization.

258212447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141648.

The product of its digits is 35840, while the sum is 35.

The square root of 258212447 is about 16068.9902296317. The cubic root of 258212447 is about 636.7843642983.

The spelling of 258212447 in words is "two hundred fifty-eight million, two hundred twelve thousand, four hundred forty-seven".