1089708641 has 8 divisors (see below), whose sum is σ = 1255188480. Its totient is φ = 926680608.

The previous prime is 1089708617. The next prime is 1089708649. The reversal of 1089708641 is 1468079801.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1089708641 - 2²⁶ = 1022599777 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1089708592 and 1089708601.

It is not an unprimeable number, because it can be changed into a prime (1089708649) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 611996 + ... + 613773.

It is an arithmetic number, because the mean of its divisors is an integer number (156898560).

Almost surely, 2^1089708641 is an apocalyptic number.

It is an amenable number.

1089708641 is a deficient number, since it is larger than the sum of its proper divisors (165479839).

1089708641 is a wasteful number, since it uses less digits than its factorization.

1089708641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1225903.

The product of its (nonzero) digits is 96768, while the sum is 44.

The square root of 1089708641 is about 33010.7352387068. The cubic root of 1089708641 is about 1029.0507611768.

The spelling of 1089708641 in words is "one billion, eighty-nine million, seven hundred eight thousand, six hundred forty-one".