1087218628 has 6 divisors (see below), whose sum is σ = 1902632606. Its totient is φ = 543609312.

The previous prime is 1087218611. The next prime is 1087218637. The reversal of 1087218628 is 8268127801.

It can be written as a sum of positive squares in only one way, i.e., 1081225924 + 5992704 = 32882^2 + 2448^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 135902325 + ... + 135902332.

Almost surely, 2^1087218628 is an apocalyptic number.

It is an amenable number.

1087218628 is a deficient number, since it is larger than the sum of its proper divisors (815413978).

1087218628 is a wasteful number, since it uses less digits than its factorization.

1087218628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 271804661 (or 271804659 counting only the distinct ones).

The product of its (nonzero) digits is 86016, while the sum is 43.

The square root of 1087218628 is about 32972.9984684438. The cubic root of 1087218628 is about 1028.2663606998.

The spelling of 1087218628 in words is "one billion, eighty-seven million, two hundred eighteen thousand, six hundred twenty-eight".