4891938 has 32 divisors (see below), whose sum is σ = 10196736. Its totient is φ = 1563408.

The previous prime is 4891927. The next prime is 4891961. The reversal of 4891938 is 8391984.

It is a self number, because there is not a number n which added to its sum of digits gives 4891938.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17145 + ... + 17427.

It is an arithmetic number, because the mean of its divisors is an integer number (318648).

Almost surely, 2^4891938 is an apocalyptic number.

4891938 is an abundant number, since it is smaller than the sum of its proper divisors (5304798).

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

4891938 is a wasteful number, since it uses less digits than its factorization.

4891938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 398.

The product of its digits is 62208, while the sum is 42.

The square root of 4891938 is about 2211.7725922888. The cubic root of 4891938 is about 169.7567223825.

The spelling of 4891938 in words is "four million, eight hundred ninety-one thousand, nine hundred thirty-eight".