868005401 has 2 divisors, whose sum is σ = 868005402. Its totient is φ = 868005400.

The previous prime is 868005389. The next prime is 868005407. The reversal of 868005401 is 104500868.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 857611225 + 10394176 = 29285^2 + 3224^2 .

It is a cyclic number.

It is not a de Polignac number, because 868005401 - 2⁶ = 868005337 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (868005407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 434002700 + 434002701.

It is an arithmetic number, because the mean of its divisors is an integer number (434002701).

Almost surely, 2^868005401 is an apocalyptic number.

It is an amenable number.

868005401 is a deficient number, since it is larger than the sum of its proper divisors (1).

868005401 is an equidigital number, since it uses as much as digits as its factorization.

868005401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7680, while the sum is 32.

The square root of 868005401 is about 29461.9313861125. The cubic root of 868005401 is about 953.9101630644.

The spelling of 868005401 in words is "eight hundred sixty-eight million, five thousand, four hundred one".