258847493 has 4 divisors (see below), whose sum is σ = 259831968. Its totient is φ = 257863020.

The previous prime is 258847481. The next prime is 258847499. The reversal of 258847493 is 394748852.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 258847493 - 2¹⁴ = 258831109 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 (258847499) 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, 491843 + ... + 492368.

It is an arithmetic number, because the mean of its divisors is an integer number (64957992).

Almost surely, 2^258847493 is an apocalyptic number.

It is an amenable number.

258847493 is a deficient number, since it is larger than the sum of its proper divisors (984475).

258847493 is an equidigital number, since it uses as much as digits as its factorization.

258847493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 984474.

The product of its digits is 1935360, while the sum is 50.

The square root of 258847493 is about 16088.7380797874. The cubic root of 258847493 is about 637.3059713503.

The spelling of 258847493 in words is "two hundred fifty-eight million, eight hundred forty-seven thousand, four hundred ninety-three".