999964783 has 2 divisors, whose sum is σ = 999964784. Its totient is φ = 999964782.

The previous prime is 999964759. The next prime is 999964807. The reversal of 999964783 is 387469999.

It is a balanced prime because it is at equal distance from previous prime (999964759) and next prime (999964807).

It is a cyclic number.

It is not a de Polignac number, because 999964783 - 2⁹ = 999964271 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (999964723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499982391 + 499982392.

It is an arithmetic number, because the mean of its divisors is an integer number (499982392).

Almost surely, 2^999964783 is an apocalyptic number.

999964783 is a deficient number, since it is larger than the sum of its proper divisors (1).

999964783 is an equidigital number, since it uses as much as digits as its factorization.

999964783 is an evil number, because the sum of its binary digits is even.

The product of its digits is 26453952, while the sum is 64.

The square root of 999964783 is about 31622.2197671194. The cubic root of 999964783 is about 999.9882608622.

The spelling of 999964783 in words is "nine hundred ninety-nine million, nine hundred sixty-four thousand, seven hundred eighty-three".