868886357 has 2 divisors, whose sum is σ = 868886358. Its totient is φ = 868886356.

The previous prime is 868886287. The next prime is 868886363. The reversal of 868886357 is 753688868.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 786185521 + 82700836 = 28039^2 + 9094^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-868886357 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 868886296 and 868886305.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (868886957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 434443178 + 434443179.

It is an arithmetic number, because the mean of its divisors is an integer number (434443179).

Almost surely, 2^868886357 is an apocalyptic number.

It is an amenable number.

868886357 is a deficient number, since it is larger than the sum of its proper divisors (1).

868886357 is an equidigital number, since it uses as much as digits as its factorization.

868886357 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15482880, while the sum is 59.

The square root of 868886357 is about 29476.8783455779. The cubic root of 868886357 is about 954.2327681019.

The spelling of 868886357 in words is "eight hundred sixty-eight million, eight hundred eighty-six thousand, three hundred fifty-seven".