1087973899 has 4 divisors (see below), whose sum is σ = 1135277136. Its totient is φ = 1040670664.

The previous prime is 1087973897. The next prime is 1087973941. The reversal of 1087973899 is 9983797801.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9983797801 = 37 ⋅269832373.

It is a cyclic number.

It is not a de Polignac number, because 1087973899 - 2¹ = 1087973897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1087973893) 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, 23651584 + ... + 23651629.

It is an arithmetic number, because the mean of its divisors is an integer number (283819284).

Almost surely, 2^1087973899 is an apocalyptic number.

1087973899 is a deficient number, since it is larger than the sum of its proper divisors (47303237).

1087973899 is an equidigital number, since it uses as much as digits as its factorization.

1087973899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47303236.

The product of its (nonzero) digits is 6858432, while the sum is 61.

The square root of 1087973899 is about 32984.4493511715. The cubic root of 1087973899 is about 1028.5044115626.

The spelling of 1087973899 in words is "one billion, eighty-seven million, nine hundred seventy-three thousand, eight hundred ninety-nine".