863878007 has 2 divisors, whose sum is σ = 863878008. Its totient is φ = 863878006.

The previous prime is 863877983. The next prime is 863878033. The reversal of 863878007 is 700878368.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 863878007 - 2¹² = 863873911 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 (863878507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 431939003 + 431939004.

It is an arithmetic number, because the mean of its divisors is an integer number (431939004).

Almost surely, 2^863878007 is an apocalyptic number.

863878007 is a deficient number, since it is larger than the sum of its proper divisors (1).

863878007 is an equidigital number, since it uses as much as digits as its factorization.

863878007 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 451584, while the sum is 47.

The square root of 863878007 is about 29391.8016970719. The cubic root of 863878007 is about 952.3958022616.

The spelling of 863878007 in words is "eight hundred sixty-three million, eight hundred seventy-eight thousand, seven".