1047816643 has 2 divisors, whose sum is σ = 1047816644. Its totient is φ = 1047816642.

The previous prime is 1047816619. The next prime is 1047816659. The reversal of 1047816643 is 3466187401.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1047816643 - 2¹³ = 1047808451 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1047816596 and 1047816605.

It is not a weakly prime, because it can be changed into another prime (1047816683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 523908321 + 523908322.

It is an arithmetic number, because the mean of its divisors is an integer number (523908322).

Almost surely, 2^1047816643 is an apocalyptic number.

1047816643 is a deficient number, since it is larger than the sum of its proper divisors (1).

1047816643 is an equidigital number, since it uses as much as digits as its factorization.

1047816643 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96768, while the sum is 40.

The square root of 1047816643 is about 32369.9960302747. The cubic root of 1047816643 is about 1015.6913739445.

The spelling of 1047816643 in words is "one billion, forty-seven million, eight hundred sixteen thousand, six hundred forty-three".