1087628291 has 2 divisors, whose sum is σ = 1087628292. Its totient is φ = 1087628290.

The previous prime is 1087628263. The next prime is 1087628293. The reversal of 1087628291 is 1928267801.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1087628291 - 2¹⁰ = 1087627267 is a prime.

It is a Sophie Germain prime.

Together with 1087628293, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1087628293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 543814145 + 543814146.

It is an arithmetic number, because the mean of its divisors is an integer number (543814146).

Almost surely, 2^1087628291 is an apocalyptic number.

1087628291 is a deficient number, since it is larger than the sum of its proper divisors (1).

1087628291 is an equidigital number, since it uses as much as digits as its factorization.

1087628291 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96768, while the sum is 44.

The square root of 1087628291 is about 32979.2099814413. The cubic root of 1087628291 is about 1028.3954944283.

The spelling of 1087628291 in words is "one billion, eighty-seven million, six hundred twenty-eight thousand, two hundred ninety-one".