8461727828 has 6 divisors (see below), whose sum is σ = 14808023706. Its totient is φ = 4230863912.

The previous prime is 8461727821. The next prime is 8461727863. The reversal of 8461727828 is 8287271648.

It can be written as a sum of positive squares in only one way, i.e., 7826587024 + 635140804 = 88468^2 + 25202^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 8461727828.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8461727821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1057715975 + ... + 1057715982.

It is an arithmetic number, because the mean of its divisors is an integer number (2468003951).

Almost surely, 2^8461727828 is an apocalyptic number.

It is an amenable number.

8461727828 is a deficient number, since it is larger than the sum of its proper divisors (6346295878).

8461727828 is a wasteful number, since it uses less digits than its factorization.

8461727828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2115431961 (or 2115431959 counting only the distinct ones).

The product of its digits is 2408448, while the sum is 53.

The square root of 8461727828 is about 91987.6504102589. The cubic root of 8461727828 is about 2037.7599264315.

The spelling of 8461727828 in words is "eight billion, four hundred sixty-one million, seven hundred twenty-seven thousand, eight hundred twenty-eight".