5781858 has 8 divisors (see below), whose sum is σ = 11563728. Its totient is φ = 1927284.

The previous prime is 5781857. The next prime is 5781859. The reversal of 5781858 is 8581875.

It is an interprime number because it is at equal distance from previous prime (5781857) and next prime (5781859).

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

5781858 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (5781857) 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, 481816 + ... + 481827.

It is an arithmetic number, because the mean of its divisors is an integer number (1445466).

Almost surely, 2^5781858 is an apocalyptic number.

5781858 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

5781858 is a wasteful number, since it uses less digits than its factorization.

5781858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 963648.

The product of its digits is 89600, while the sum is 42.

The square root of 5781858 is about 2404.5494380445. The cubic root of 5781858 is about 179.4826502785.

The spelling of 5781858 in words is "five million, seven hundred eighty-one thousand, eight hundred fifty-eight".