1072795643 has 4 divisors (see below), whose sum is σ = 1090978680. Its totient is φ = 1054612608.

The previous prime is 1072795597. The next prime is 1072795687. The reversal of 1072795643 is 3465972701.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3465972701 = 31 ⋅111805571.

It is a cyclic number.

It is not a de Polignac number, because 1072795643 - 2²⁸ = 804360187 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1072795594 and 1072795603.

It is not an unprimeable number, because it can be changed into a prime (1072795343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9091430 + ... + 9091547.

It is an arithmetic number, because the mean of its divisors is an integer number (272744670).

Almost surely, 2^1072795643 is an apocalyptic number.

1072795643 is a deficient number, since it is larger than the sum of its proper divisors (18183037).

1072795643 is an equidigital number, since it uses as much as digits as its factorization.

1072795643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18183036.

The product of its (nonzero) digits is 317520, while the sum is 44.

The square root of 1072795643 is about 32753.5592417068. The cubic root of 1072795643 is about 1023.6991287673.

The spelling of 1072795643 in words is "one billion, seventy-two million, seven hundred ninety-five thousand, six hundred forty-three".