868405427 has 2 divisors, whose sum is σ = 868405428. Its totient is φ = 868405426.

The previous prime is 868405423. The next prime is 868405451. The reversal of 868405427 is 724504868.

868405427 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 868405427 - 2² = 868405423 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (868405423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 434202713 + 434202714.

It is an arithmetic number, because the mean of its divisors is an integer number (434202714).

Almost surely, 2^868405427 is an apocalyptic number.

868405427 is a deficient number, since it is larger than the sum of its proper divisors (1).

868405427 is an equidigital number, since it uses as much as digits as its factorization.

868405427 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 430080, while the sum is 44.

The square root of 868405427 is about 29468.7194665802. The cubic root of 868405427 is about 954.0566791506.

The spelling of 868405427 in words is "eight hundred sixty-eight million, four hundred five thousand, four hundred twenty-seven".