4961881 has 4 divisors (see below), whose sum is σ = 4966564. Its totient is φ = 4957200.

The previous prime is 4961863. The next prime is 4961897. The reversal of 4961881 is 1881694.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 4347225 + 614656 = 2085^2 + 784^2 .

It is a cyclic number.

It is not a de Polignac number, because 4961881 - 2¹¹ = 4959833 is a prime.

It is a super-2 number, since 2×4961881² = 49240526116322, which contains 22 as substring.

It is an Ulam number.

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 4961881.

It is not an unprimeable number, because it can be changed into a prime (4961821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 91 + ... + 3151.

It is an arithmetic number, because the mean of its divisors is an integer number (1241641).

Almost surely, 2^4961881 is an apocalyptic number.

It is an amenable number.

4961881 is a deficient number, since it is larger than the sum of its proper divisors (4683).

4961881 is a wasteful number, since it uses less digits than its factorization.

4961881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4682.

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

The square root of 4961881 is about 2227.5280020687. The cubic root of 4961881 is about 170.5619351704.

The spelling of 4961881 in words is "four million, nine hundred sixty-one thousand, eight hundred eighty-one".