868498487 has 2 divisors, whose sum is σ = 868498488. Its totient is φ = 868498486.

The previous prime is 868498481. The next prime is 868498529. The reversal of 868498487 is 784894868.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 868498487 - 2¹⁰ = 868497463 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (868498481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 434249243 + 434249244.

It is an arithmetic number, because the mean of its divisors is an integer number (434249244).

Almost surely, 2^868498487 is an apocalyptic number.

868498487 is a deficient number, since it is larger than the sum of its proper divisors (1).

868498487 is an equidigital number, since it uses as much as digits as its factorization.

868498487 is an evil number, because the sum of its binary digits is even.

The product of its digits is 24772608, while the sum is 62.

The square root of 868498487 is about 29470.2983866808. The cubic root of 868498487 is about 954.0907574511.

The spelling of 868498487 in words is "eight hundred sixty-eight million, four hundred ninety-eight thousand, four hundred eighty-seven".