868037039 has 2 divisors, whose sum is σ = 868037040. Its totient is φ = 868037038.

The previous prime is 868037033. The next prime is 868037041. The reversal of 868037039 is 930730868.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 868037039 - 2⁸ = 868036783 is a prime.

It is a Sophie Germain prime.

Together with 868037041, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (868037033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 434018519 + 434018520.

It is an arithmetic number, because the mean of its divisors is an integer number (434018520).

Almost surely, 2^868037039 is an apocalyptic number.

868037039 is a deficient number, since it is larger than the sum of its proper divisors (1).

868037039 is an equidigital number, since it uses as much as digits as its factorization.

868037039 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 217728, while the sum is 44.

The square root of 868037039 is about 29462.4683113958. The cubic root of 868037039 is about 953.9217526401.

The spelling of 868037039 in words is "eight hundred sixty-eight million, thirty-seven thousand, thirty-nine".