7891346747 has 2 divisors, whose sum is σ = 7891346748. Its totient is φ = 7891346746.

The previous prime is 7891346737. The next prime is 7891346767. The reversal of 7891346747 is 7476431987.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 7891346747 - 2⁴ = 7891346731 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7891346692 and 7891346701.

It is not a weakly prime, because it can be changed into another prime (7891346707) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3945673373 + 3945673374.

It is an arithmetic number, because the mean of its divisors is an integer number (3945673374).

Almost surely, 2^7891346747 is an apocalyptic number.

7891346747 is a deficient number, since it is larger than the sum of its proper divisors (1).

7891346747 is an equidigital number, since it uses as much as digits as its factorization.

7891346747 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7112448, while the sum is 56.

The square root of 7891346747 is about 88833.2524846411. The cubic root of 7891346747 is about 1990.9042587046.

The spelling of 7891346747 in words is "seven billion, eight hundred ninety-one million, three hundred forty-six thousand, seven hundred forty-seven".