1089869875 has 24 divisors (see below), whose sum is σ = 1373037120. Its totient is φ = 863702000.

The previous prime is 1089869857. The next prime is 1089869897. The reversal of 1089869875 is 5789689801.

It is not a de Polignac number, because 1089869875 - 2⁵ = 1089869843 is a prime.

It is a congruent number.

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 in 23 ways as a sum of consecutive naturals, for example, 4560006 + ... + 4560244.

It is an arithmetic number, because the mean of its divisors is an integer number (57209880).

Almost surely, 2^1089869875 is an apocalyptic number.

1089869875 is a deficient number, since it is larger than the sum of its proper divisors (283167245).

1089869875 is an frugal number, since it uses more digits than its factorization.

1089869875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 636 (or 435 counting only the distinct ones).

The product of its (nonzero) digits is 8709120, while the sum is 61.

The square root of 1089869875 is about 33013.1772933173. The cubic root of 1089869875 is about 1029.1015116807.

The spelling of 1089869875 in words is "one billion, eighty-nine million, eight hundred sixty-nine thousand, eight hundred seventy-five".