28004683716 has 81 divisors (see below), whose sum is σ = 73579789101. Its totient is φ = 9325857888.

The previous prime is 28004683709. The next prime is 28004683723. The reversal of 28004683716 is 61738640082.

The square root of 28004683716 is 167346.

It is a perfect power (a square), and thus also a powerful number.

It is an interprime number because it is at equal distance from previous prime (28004683709) and next prime (28004683723).

It can be written as a sum of positive squares in only one way, i.e., 27037224900 + 967458816 = 164430^2 + 31104^2 .

It is a tau number, because it is divible by the number of its divisors (81).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 27109536 + ... + 27110568.

Almost surely, 2^28004683716 is an apocalyptic number.

28004683716 is the 167346-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28004683716

28004683716 is an abundant number, since it is smaller than the sum of its proper divisors (45575105385).

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

28004683716 is an frugal number, since it uses more digits than its factorization.

28004683716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2094 (or 1038 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 45.

The spelling of 28004683716 in words is "twenty-eight billion, four million, six hundred eighty-three thousand, seven hundred sixteen".