4891878 has 12 divisors (see below), whose sum is σ = 10599108. Its totient is φ = 1630620.

The previous prime is 4891853. The next prime is 4891879. The reversal of 4891878 is 8781984.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4891879) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 135868 + ... + 135903.

It is an arithmetic number, because the mean of its divisors is an integer number (883259).

Almost surely, 2^4891878 is an apocalyptic number.

4891878 is an abundant number, since it is smaller than the sum of its proper divisors (5707230).

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

4891878 is a wasteful number, since it uses less digits than its factorization.

4891878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 271779 (or 271776 counting only the distinct ones).

The product of its digits is 129024, while the sum is 45.

The square root of 4891878 is about 2211.7590284658. The cubic root of 4891878 is about 169.7560283531.

It can be divided in two parts, 48 and 91878, that multiplied together give a palindrome (4410144).

The spelling of 4891878 in words is "four million, eight hundred ninety-one thousand, eight hundred seventy-eight".