858993434 has 16 divisors (see below), whose sum is σ = 1395364320. Its totient is φ = 394241520.

The previous prime is 858993433. The next prime is 858993503. The reversal of 858993434 is 434399858.

It is a happy number.

858993434 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×858993434² = 1475739439310224712, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (858993433) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 87632 + ... + 96939.

It is an arithmetic number, because the mean of its divisors is an integer number (87210270).

Almost surely, 2^858993434 is an apocalyptic number.

858993434 is a deficient number, since it is larger than the sum of its proper divisors (536370886).

858993434 is a wasteful number, since it uses less digits than its factorization.

858993434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184765.

The product of its digits is 3732480, while the sum is 53.

The square root of 858993434 is about 29308.5897647772. The cubic root of 858993434 is about 950.5973838281.

The spelling of 858993434 in words is "eight hundred fifty-eight million, nine hundred ninety-three thousand, four hundred thirty-four".