4903638 has 8 divisors (see below), whose sum is σ = 9807288. Its totient is φ = 1634544.

The previous prime is 4903637. The next prime is 4903643. The reversal of 4903638 is 8363094.

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

4903638 is an admirable number.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an alternating number because its digits alternate between even and odd.

It is a junction number, because it is equal to n+sod(n) for n = 4903599 and 4903608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4903631) 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, 408631 + ... + 408642.

It is an arithmetic number, because the mean of its divisors is an integer number (1225911).

Almost surely, 2^4903638 is an apocalyptic number.

4903638 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.

4903638 is a wasteful number, since it uses less digits than its factorization.

4903638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 817278.

The product of its (nonzero) digits is 15552, while the sum is 33.

The square root of 4903638 is about 2214.4159500871. The cubic root of 4903638 is about 169.8919497934.

The spelling of 4903638 in words is "four million, nine hundred three thousand, six hundred thirty-eight".