876741421 has 2 divisors, whose sum is σ = 876741422. Its totient is φ = 876741420.

The previous prime is 876741373. The next prime is 876741433. The reversal of 876741421 is 124147678.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 717704100 + 159037321 = 26790^2 + 12611^2 .

It is a cyclic number.

It is not a de Polignac number, because 876741421 - 2¹¹ = 876739373 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (876741451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 438370710 + 438370711.

It is an arithmetic number, because the mean of its divisors is an integer number (438370711).

Almost surely, 2^876741421 is an apocalyptic number.

It is an amenable number.

876741421 is a deficient number, since it is larger than the sum of its proper divisors (1).

876741421 is an equidigital number, since it uses as much as digits as its factorization.

876741421 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 75264, while the sum is 40.

The square root of 876741421 is about 29609.8196718589. The cubic root of 876741421 is about 957.0996887287.

The spelling of 876741421 in words is "eight hundred seventy-six million, seven hundred forty-one thousand, four hundred twenty-one".