1087828321 has 2 divisors, whose sum is σ = 1087828322. Its totient is φ = 1087828320.

The previous prime is 1087828307. The next prime is 1087828327. The reversal of 1087828321 is 1238287801.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 723018321 + 364810000 = 26889^2 + 19100^2 .

It is an emirp because it is prime and its reverse (1238287801) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1087828321 - 2¹¹ = 1087826273 is a prime.

It is not a weakly prime, because it can be changed into another prime (1087828327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 543914160 + 543914161.

It is an arithmetic number, because the mean of its divisors is an integer number (543914161).

Almost surely, 2^1087828321 is an apocalyptic number.

It is an amenable number.

1087828321 is a deficient number, since it is larger than the sum of its proper divisors (1).

1087828321 is an equidigital number, since it uses as much as digits as its factorization.

1087828321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 43008, while the sum is 40.

The square root of 1087828321 is about 32982.2425101751. The cubic root of 1087828321 is about 1028.4585359848.

The spelling of 1087828321 in words is "one billion, eighty-seven million, eight hundred twenty-eight thousand, three hundred twenty-one".