6253638 has 8 divisors (see below), whose sum is σ = 12507288. Its totient is φ = 2084544.

The previous prime is 6253633. The next prime is 6253669. The reversal of 6253638 is 8363526.

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

6253638 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 6253599 and 6253608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6253633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 521131 + ... + 521142.

It is an arithmetic number, because the mean of its divisors is an integer number (1563411).

Almost surely, 2^6253638 is an apocalyptic number.

6253638 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.

6253638 is a wasteful number, since it uses less digits than its factorization.

6253638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1042278.

The product of its digits is 25920, while the sum is 33.

The square root of 6253638 is about 2500.7274941505. The cubic root of 6253638 is about 184.2373080173.

The spelling of 6253638 in words is "six million, two hundred fifty-three thousand, six hundred thirty-eight".