869530723 has 2 divisors, whose sum is σ = 869530724. Its totient is φ = 869530722.

The previous prime is 869530657. The next prime is 869530729. The reversal of 869530723 is 327035968.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-869530723 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 869530723.

It is not a weakly prime, because it can be changed into another prime (869530729) 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, 434765361 + 434765362.

It is an arithmetic number, because the mean of its divisors is an integer number (434765362).

Almost surely, 2^869530723 is an apocalyptic number.

869530723 is a deficient number, since it is larger than the sum of its proper divisors (1).

869530723 is an equidigital number, since it uses as much as digits as its factorization.

869530723 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 272160, while the sum is 43.

The square root of 869530723 is about 29487.8063443180. The cubic root of 869530723 is about 954.4685961103.

The spelling of 869530723 in words is "eight hundred sixty-nine million, five hundred thirty thousand, seven hundred twenty-three".