4891838 has 16 divisors (see below), whose sum is σ = 8494080. Its totient is φ = 2069496.

The previous prime is 4891823. The next prime is 4891841. The reversal of 4891838 is 8381984.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 4891795 and 4891804.

It is a congruent 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, 1106 + ... + 3317.

It is an arithmetic number, because the mean of its divisors is an integer number (530880).

Almost surely, 2^4891838 is an apocalyptic number.

4891838 is a deficient number, since it is larger than the sum of its proper divisors (3602242).

4891838 is a wasteful number, since it uses less digits than its factorization.

4891838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4511.

The product of its digits is 55296, while the sum is 41.

The square root of 4891838 is about 2211.7499858709. The cubic root of 4891838 is about 169.7555656638.

The spelling of 4891838 in words is "four million, eight hundred ninety-one thousand, eight hundred thirty-eight".