876401089 has 2 divisors, whose sum is σ = 876401090. Its totient is φ = 876401088.

The previous prime is 876401081. The next prime is 876401101. The reversal of 876401089 is 980104678.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 606784689 + 269616400 = 24633^2 + 16420^2 .

It is a cyclic number.

It is not a de Polignac number, because 876401089 - 2³ = 876401081 is a prime.

It is not a weakly prime, because it can be changed into another prime (876401081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 438200544 + 438200545.

It is an arithmetic number, because the mean of its divisors is an integer number (438200545).

Almost surely, 2^876401089 is an apocalyptic number.

It is an amenable number.

876401089 is a deficient number, since it is larger than the sum of its proper divisors (1).

876401089 is an equidigital number, since it uses as much as digits as its factorization.

876401089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96768, while the sum is 43.

The square root of 876401089 is about 29604.0721692135. The cubic root of 876401089 is about 956.9758309223.

The spelling of 876401089 in words is "eight hundred seventy-six million, four hundred one thousand, eighty-nine".