868498529 has 2 divisors, whose sum is σ = 868498530. Its totient is φ = 868498528.

The previous prime is 868498487. The next prime is 868498619. The reversal of 868498529 is 925894868.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 502656400 + 365842129 = 22420^2 + 19127^2 .

It is a cyclic number.

It is not a de Polignac number, because 868498529 - 2¹² = 868494433 is a prime.

It is not a weakly prime, because it can be changed into another prime (868498129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 434249264 + 434249265.

It is an arithmetic number, because the mean of its divisors is an integer number (434249265).

Almost surely, 2^868498529 is an apocalyptic number.

It is an amenable number.

868498529 is a deficient number, since it is larger than the sum of its proper divisors (1).

868498529 is an equidigital number, since it uses as much as digits as its factorization.

868498529 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9953280, while the sum is 59.

The square root of 868498529 is about 29470.2990992626. The cubic root of 868498529 is about 954.0907728309.

The spelling of 868498529 in words is "eight hundred sixty-eight million, four hundred ninety-eight thousand, five hundred twenty-nine".