876564473 has 2 divisors, whose sum is σ = 876564474. Its totient is φ = 876564472.

The previous prime is 876564457. The next prime is 876564529. The reversal of 876564473 is 374465678.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 487173184 + 389391289 = 22072^2 + 19733^2 .

It is a cyclic number.

It is not a de Polignac number, because 876564473 - 2⁴ = 876564457 is a prime.

It is not a weakly prime, because it can be changed into another prime (876564443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 438282236 + 438282237.

It is an arithmetic number, because the mean of its divisors is an integer number (438282237).

Almost surely, 2^876564473 is an apocalyptic number.

It is an amenable number.

876564473 is a deficient number, since it is larger than the sum of its proper divisors (1).

876564473 is an equidigital number, since it uses as much as digits as its factorization.

876564473 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3386880, while the sum is 50.

The square root of 876564473 is about 29606.8315258489. The cubic root of 876564473 is about 957.0352956376.

It can be divided in two parts, 87656 and 4473, that added together give a palindrome (92129).

The spelling of 876564473 in words is "eight hundred seventy-six million, five hundred sixty-four thousand, four hundred seventy-three".