128703863 has 2 divisors, whose sum is σ = 128703864. Its totient is φ = 128703862.

The previous prime is 128703833. The next prime is 128703893. The reversal of 128703863 is 368307821.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (128703833) and next prime (128703893).

It is a cyclic number.

It is not a de Polignac number, because 128703863 - 2¹⁰ = 128702839 is a prime.

It is a super-2 number, since 2×128703863² = 33129368702245538, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (128703823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64351931 + 64351932.

It is an arithmetic number, because the mean of its divisors is an integer number (64351932).

Almost surely, 2^128703863 is an apocalyptic number.

128703863 is a deficient number, since it is larger than the sum of its proper divisors (1).

128703863 is an equidigital number, since it uses as much as digits as its factorization.

128703863 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48384, while the sum is 38.

The square root of 128703863 is about 11344.7724966171. The cubic root of 128703863 is about 504.8904941792.

The spelling of 128703863 in words is "one hundred twenty-eight million, seven hundred three thousand, eight hundred sixty-three".