6428858 has 8 divisors (see below), whose sum is σ = 9654228. Its totient is φ = 3210784.

The previous prime is 6428857. The next prime is 6428879. The reversal of 6428858 is 8588246.

It can be written as a sum of positive squares in 2 ways, for example, as 6416089 + 12769 = 2533^2 + 113^2 .

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

It is not an unprimeable number, because it can be changed into a prime (6428857) 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, 1910 + ... + 4062.

Almost surely, 2^6428858 is an apocalyptic number.

6428858 is a deficient number, since it is larger than the sum of its proper divisors (3225370).

6428858 is a wasteful number, since it uses less digits than its factorization.

6428858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3648.

The product of its digits is 122880, while the sum is 41.

The square root of 6428858 is about 2535.5192762036. The cubic root of 6428858 is about 185.9421911534.

It can be divided in two parts, 64288 and 58, that added together give a palindrome (64346).

The spelling of 6428858 in words is "six million, four hundred twenty-eight thousand, eight hundred fifty-eight".