8015884820 has 12 divisors (see below), whose sum is σ = 16833358164. Its totient is φ = 3206353920.

The previous prime is 8015884819. The next prime is 8015884823. The reversal of 8015884820 is 284885108.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 997801744 + 7018083076 = 31588^2 + 83774^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8015884823) 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, 200397101 + ... + 200397140.

It is an arithmetic number, because the mean of its divisors is an integer number (1402779847).

Almost surely, 2^8015884820 is an apocalyptic number.

It is an amenable number.

8015884820 is an abundant number, since it is smaller than the sum of its proper divisors (8817473344).

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

8015884820 is a wasteful number, since it uses less digits than its factorization.

8015884820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 400794250 (or 400794248 counting only the distinct ones).

The product of its (nonzero) digits is 163840, while the sum is 44.

The square root of 8015884820 is about 89531.4739072244. The cubic root of 8015884820 is about 2001.3228598280.

The spelling of 8015884820 in words is "eight billion, fifteen million, eight hundred eighty-four thousand, eight hundred twenty".