859039963 has 2 divisors, whose sum is σ = 859039964. Its totient is φ = 859039962.

The previous prime is 859039927. The next prime is 859039969. The reversal of 859039963 is 369930958.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 859039963 - 2⁹ = 859039451 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 859039963.

It is not a weakly prime, because it can be changed into another prime (859039969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 429519981 + 429519982.

It is an arithmetic number, because the mean of its divisors is an integer number (429519982).

Almost surely, 2^859039963 is an apocalyptic number.

859039963 is a deficient number, since it is larger than the sum of its proper divisors (1).

859039963 is an equidigital number, since it uses as much as digits as its factorization.

859039963 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1574640, while the sum is 52.

The square root of 859039963 is about 29309.3835315586. The cubic root of 859039963 is about 950.6145471518.

The spelling of 859039963 in words is "eight hundred fifty-nine million, thirty-nine thousand, nine hundred sixty-three".