4889161 has 4 divisors (see below), whose sum is σ = 4900500. Its totient is φ = 4877824.

The previous prime is 4889147. The next prime is 4889173. The reversal of 4889161 is 1619884.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1279161 + 3610000 = 1131^2 + 1900^2 .

It is a cyclic number.

It is not a de Polignac number, because 4889161 - 2⁷ = 4889033 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4889161.

It is not an unprimeable number, because it can be changed into a prime (4889461) 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, 4996 + ... + 5893.

It is an arithmetic number, because the mean of its divisors is an integer number (1225125).

Almost surely, 2^4889161 is an apocalyptic number.

It is an amenable number.

4889161 is a deficient number, since it is larger than the sum of its proper divisors (11339).

4889161 is a wasteful number, since it uses less digits than its factorization.

4889161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11338.

The product of its digits is 13824, while the sum is 37.

The square root of 4889161 is about 2211.1447261543. The cubic root of 4889161 is about 169.7245944440.

It can be divided in two parts, 4889 and 161, that added together give a triangular number (5050 = T₁₀₀).

The spelling of 4889161 in words is "four million, eight hundred eighty-nine thousand, one hundred sixty-one".