1307728783 has 2 divisors, whose sum is σ = 1307728784. Its totient is φ = 1307728782.

The previous prime is 1307728739. The next prime is 1307728817. The reversal of 1307728783 is 3878277031.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1307728783 - 2²¹ = 1305631631 is a prime.

It is a super-2 number, since 2×1307728783² = 3420309139773322178, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1307728183) 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, 653864391 + 653864392.

It is an arithmetic number, because the mean of its divisors is an integer number (653864392).

Almost surely, 2^1307728783 is an apocalyptic number.

1307728783 is a deficient number, since it is larger than the sum of its proper divisors (1).

1307728783 is an equidigital number, since it uses as much as digits as its factorization.

1307728783 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 395136, while the sum is 46.

The square root of 1307728783 is about 36162.5328620660. The cubic root of 1307728783 is about 1093.5514670380.

The spelling of 1307728783 in words is "one billion, three hundred seven million, seven hundred twenty-eight thousand, seven hundred eighty-three".