1086924809 has 4 divisors (see below), whose sum is σ = 1087659216. Its totient is φ = 1086190404.

The previous prime is 1086924799. The next prime is 1086924841. The reversal of 1086924809 is 9084296801.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9084296801 = 439 ⋅20693159.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1086924809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1086923809) 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, 364979 + ... + 367944.

It is an arithmetic number, because the mean of its divisors is an integer number (271914804).

Almost surely, 2^1086924809 is an apocalyptic number.

It is an amenable number.

1086924809 is a deficient number, since it is larger than the sum of its proper divisors (734407).

1086924809 is an equidigital number, since it uses as much as digits as its factorization.

1086924809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 734406.

The product of its (nonzero) digits is 248832, while the sum is 47.

The square root of 1086924809 is about 32968.5427187797. The cubic root of 1086924809 is about 1028.1737232712.

The spelling of 1086924809 in words is "one billion, eighty-six million, nine hundred twenty-four thousand, eight hundred nine".