871614761 has 2 divisors, whose sum is σ = 871614762. Its totient is φ = 871614760.

The previous prime is 871614727. The next prime is 871614763. The reversal of 871614761 is 167416178.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 441840400 + 429774361 = 21020^2 + 20731^2 .

It is a cyclic number.

It is not a de Polignac number, because 871614761 - 2⁶ = 871614697 is a prime.

Together with 871614763, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (871614763) 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, 435807380 + 435807381.

It is an arithmetic number, because the mean of its divisors is an integer number (435807381).

Almost surely, 2^871614761 is an apocalyptic number.

It is an amenable number.

871614761 is a deficient number, since it is larger than the sum of its proper divisors (1).

871614761 is an equidigital number, since it uses as much as digits as its factorization.

871614761 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 56448, while the sum is 41.

The square root of 871614761 is about 29523.1224805236. The cubic root of 871614761 is about 955.2305250172.

The spelling of 871614761 in words is "eight hundred seventy-one million, six hundred fourteen thousand, seven hundred sixty-one".