876988997 has 2 divisors, whose sum is σ = 876988998. Its totient is φ = 876988996.

The previous prime is 876988993. The next prime is 876989053. The reversal of 876988997 is 799889678.

It is a Cunningham number, because it is equal to 29614²+1.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 876988996 + 1 = 29614^2 + 1^2 .

It is a cyclic number.

It is not a de Polignac number, because 876988997 - 2² = 876988993 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 876988997.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (876988991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 438494498 + 438494499.

It is an arithmetic number, because the mean of its divisors is an integer number (438494499).

Almost surely, 2^876988997 is an apocalyptic number.

It is an amenable number.

876988997 is a deficient number, since it is larger than the sum of its proper divisors (1).

876988997 is an equidigital number, since it uses as much as digits as its factorization.

876988997 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 109734912, while the sum is 71.

The square root of 876988997 is about 29614.0000168839. Note that the first 4 decimals coincide. The cubic root of 876988997 is about 957.1897694931.

The spelling of 876988997 in words is "eight hundred seventy-six million, nine hundred eighty-eight thousand, nine hundred ninety-seven".