867869371 has 2 divisors, whose sum is σ = 867869372. Its totient is φ = 867869370.

The previous prime is 867869369. The next prime is 867869377. The reversal of 867869371 is 173968768.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 867869371 - 2¹ = 867869369 is a prime.

Together with 867869369, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (867869377) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 433934685 + 433934686.

It is an arithmetic number, because the mean of its divisors is an integer number (433934686).

Almost surely, 2^867869371 is an apocalyptic number.

867869371 is a deficient number, since it is larger than the sum of its proper divisors (1).

867869371 is an equidigital number, since it uses as much as digits as its factorization.

867869371 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3048192, while the sum is 55.

The square root of 867869371 is about 29459.6227233140. The cubic root of 867869371 is about 953.8603295885.

The spelling of 867869371 in words is "eight hundred sixty-seven million, eight hundred sixty-nine thousand, three hundred seventy-one".