1492789847 has 2 divisors, whose sum is σ = 1492789848. Its totient is φ = 1492789846.

The previous prime is 1492789829. The next prime is 1492789871. The reversal of 1492789847 is 7489872941.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1492789847 - 2⁶ = 1492789783 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1492789817) 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, 746394923 + 746394924.

It is an arithmetic number, because the mean of its divisors is an integer number (746394924).

Almost surely, 2^1492789847 is an apocalyptic number.

1492789847 is a deficient number, since it is larger than the sum of its proper divisors (1).

1492789847 is an equidigital number, since it uses as much as digits as its factorization.

1492789847 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8128512, while the sum is 59.

The square root of 1492789847 is about 38636.6386607324. The cubic root of 1492789847 is about 1142.8771704236.

The spelling of 1492789847 in words is "one billion, four hundred ninety-two million, seven hundred eighty-nine thousand, eight hundred forty-seven".