868233629 has 2 divisors, whose sum is σ = 868233630. Its totient is φ = 868233628.

The previous prime is 868233551. The next prime is 868233643. The reversal of 868233629 is 926332868.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 709423225 + 158810404 = 26635^2 + 12602^2 .

It is a cyclic number.

It is not a de Polignac number, because 868233629 - 2¹² = 868229533 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (868233649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 434116814 + 434116815.

It is an arithmetic number, because the mean of its divisors is an integer number (434116815).

Almost surely, 2^868233629 is an apocalyptic number.

It is an amenable number.

868233629 is a deficient number, since it is larger than the sum of its proper divisors (1).

868233629 is an equidigital number, since it uses as much as digits as its factorization.

868233629 is an evil number, because the sum of its binary digits is even.

The product of its digits is 746496, while the sum is 47.

The square root of 868233629 is about 29465.8044010341. The cubic root of 868233629 is about 953.9937608278.

The spelling of 868233629 in words is "eight hundred sixty-eight million, two hundred thirty-three thousand, six hundred twenty-nine".