486878849 has 4 divisors (see below), whose sum is σ = 487574100. Its totient is φ = 486183600.

The previous prime is 486878803. The next prime is 486878851. The reversal of 486878849 is 948878684.

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 435139600 + 51739249 = 20860^2 + 7193^2 .

It is a cyclic number.

It is not a de Polignac number, because 486878849 - 2²⁰ = 485830273 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 486878791 and 486878800.

It is not an unprimeable number, because it can be changed into a prime (486878869) 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, 346574 + ... + 347975.

It is an arithmetic number, because the mean of its divisors is an integer number (121893525).

Almost surely, 2^486878849 is an apocalyptic number.

It is an amenable number.

486878849 is a deficient number, since it is larger than the sum of its proper divisors (695251).

486878849 is an equidigital number, since it uses as much as digits as its factorization.

486878849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 695250.

The product of its digits is 24772608, while the sum is 62.

The square root of 486878849 is about 22065.3313820572. The cubic root of 486878849 is about 786.6960497460.

The spelling of 486878849 in words is "four hundred eighty-six million, eight hundred seventy-eight thousand, eight hundred forty-nine".