1086645969 has 16 divisors (see below), whose sum is σ = 1644099840. Its totient is φ = 709016400.

The previous prime is 1086645947. The next prime is 1086646013. The reversal of 1086645969 is 9695466801.

It is a happy number.

It is not a de Polignac number, because 1086645969 - 2⁸ = 1086645713 is a prime.

It is a super-2 number, since 2×1086645969² = 2361598923887897922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1086605969) 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 15 ways as a sum of consecutive naturals, for example, 426882 + ... + 429419.

It is an arithmetic number, because the mean of its divisors is an integer number (102756240).

Almost surely, 2^1086645969 is an apocalyptic number.

It is an amenable number.

1086645969 is a deficient number, since it is larger than the sum of its proper divisors (557453871).

1086645969 is an equidigital number, since it uses as much as digits as its factorization.

1086645969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 856357 (or 856351 counting only the distinct ones).

The product of its (nonzero) digits is 2799360, while the sum is 54.

The square root of 1086645969 is about 32964.3135678570. The cubic root of 1086645969 is about 1028.0857930917.

The spelling of 1086645969 in words is "one billion, eighty-six million, six hundred forty-five thousand, nine hundred sixty-nine".