868614653 has 2 divisors, whose sum is σ = 868614654. Its totient is φ = 868614652.

The previous prime is 868614623. The next prime is 868614673. The reversal of 868614653 is 356416868.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 867773764 + 840889 = 29458^2 + 917^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-868614653 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 868614598 and 868614607.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (868614623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 434307326 + 434307327.

It is an arithmetic number, because the mean of its divisors is an integer number (434307327).

Almost surely, 2^868614653 is an apocalyptic number.

It is an amenable number.

868614653 is a deficient number, since it is larger than the sum of its proper divisors (1).

868614653 is an equidigital number, since it uses as much as digits as its factorization.

868614653 is an evil number, because the sum of its binary digits is even.

The product of its digits is 829440, while the sum is 47.

The square root of 868614653 is about 29472.2692204045. The cubic root of 868614653 is about 954.1332936856.

The spelling of 868614653 in words is "eight hundred sixty-eight million, six hundred fourteen thousand, six hundred fifty-three".