1087628308 has 12 divisors (see below), whose sum is σ = 2049761140. Its totient is φ = 501982272.

The previous prime is 1087628293. The next prime is 1087628309. The reversal of 1087628308 is 8038267801.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 739731204 + 347897104 = 27198^2 + 18652^2 .

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1087628309) 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, 10457913 + ... + 10458016.

Almost surely, 2^1087628308 is an apocalyptic number.

It is an amenable number.

1087628308 is a deficient number, since it is larger than the sum of its proper divisors (962132832).

1087628308 is a wasteful number, since it uses less digits than its factorization.

1087628308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20915946 (or 20915944 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 43.

The square root of 1087628308 is about 32979.2102391795. The cubic root of 1087628308 is about 1028.3954997863.

The spelling of 1087628308 in words is "one billion, eighty-seven million, six hundred twenty-eight thousand, three hundred eight".