1079727643 has 2 divisors, whose sum is σ = 1079727644. Its totient is φ = 1079727642.

The previous prime is 1079727631. The next prime is 1079727697. The reversal of 1079727643 is 3467279701.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1079727643 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1079727593 and 1079727602.

It is not a weakly prime, because it can be changed into another prime (1079797643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 539863821 + 539863822.

It is an arithmetic number, because the mean of its divisors is an integer number (539863822).

Almost surely, 2^1079727643 is an apocalyptic number.

1079727643 is a deficient number, since it is larger than the sum of its proper divisors (1).

1079727643 is an equidigital number, since it uses as much as digits as its factorization.

1079727643 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 444528, while the sum is 46.

The square root of 1079727643 is about 32859.2094092356. The cubic root of 1079727643 is about 1025.8993155850.

The spelling of 1079727643 in words is "one billion, seventy-nine million, seven hundred twenty-seven thousand, six hundred forty-three".