1081667793 has 8 divisors (see below), whose sum is σ = 1445932800. Its totient is φ = 719257328.

The previous prime is 1081667773. The next prime is 1081667801. The reversal of 1081667793 is 3977661801.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1081667793 - 2⁵ = 1081667761 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1081667773) 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, 462273 + ... + 464606.

It is an arithmetic number, because the mean of its divisors is an integer number (180741600).

Almost surely, 2^1081667793 is an apocalyptic number.

It is an amenable number.

1081667793 is a deficient number, since it is larger than the sum of its proper divisors (364265007).

1081667793 is an equidigital number, since it uses as much as digits as its factorization.

1081667793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 927271.

The product of its (nonzero) digits is 381024, while the sum is 48.

The square root of 1081667793 is about 32888.7183240697. The cubic root of 1081667793 is about 1026.5134234063.

The spelling of 1081667793 in words is "one billion, eighty-one million, six hundred sixty-seven thousand, seven hundred ninety-three".