1010871987 has 4 divisors (see below), whose sum is σ = 1347829320. Its totient is φ = 673914656.

The previous prime is 1010871977. The next prime is 1010872033. The reversal of 1010871987 is 7891780101.

It is a happy number.

1010871987 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1010871987 - 2¹⁹ = 1010347699 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1010871977) 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, 168478662 + ... + 168478667.

It is an arithmetic number, because the mean of its divisors is an integer number (336957330).

Almost surely, 2^1010871987 is an apocalyptic number.

1010871987 is a deficient number, since it is larger than the sum of its proper divisors (336957333).

1010871987 is an equidigital number, since it uses as much as digits as its factorization.

1010871987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 336957332.

The product of its (nonzero) digits is 28224, while the sum is 42.

The square root of 1010871987 is about 31794.2131055323. The cubic root of 1010871987 is about 1003.6109410770.

The spelling of 1010871987 in words is "one billion, ten million, eight hundred seventy-one thousand, nine hundred eighty-seven".