6213858 has 16 divisors (see below), whose sum is σ = 14203200. Its totient is φ = 1775376.

The previous prime is 6213839. The next prime is 6213869. The reversal of 6213858 is 8583126.

It is a happy number.

6213858 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×6213858² = 77224062488328, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73933 + ... + 74016.

It is an arithmetic number, because the mean of its divisors is an integer number (887700).

Almost surely, 2^6213858 is an apocalyptic number.

6213858 is an abundant number, since it is smaller than the sum of its proper divisors (7989342).

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

6213858 is a wasteful number, since it uses less digits than its factorization.

6213858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147961.

The product of its digits is 11520, while the sum is 33.

The square root of 6213858 is about 2492.7611197225. The cubic root of 6213858 is about 183.8458262728.

The spelling of 6213858 in words is "six million, two hundred thirteen thousand, eight hundred fifty-eight".