946239089 has 2 divisors, whose sum is σ = 946239090. Its totient is φ = 946239088.

The previous prime is 946239079. The next prime is 946239097. The reversal of 946239089 is 980932649.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 945255025 + 984064 = 30745^2 + 992^2 .

It is a cyclic number.

It is not a de Polignac number, because 946239089 - 2²⁰ = 945190513 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (946239059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 473119544 + 473119545.

It is an arithmetic number, because the mean of its divisors is an integer number (473119545).

Almost surely, 2^946239089 is an apocalyptic number.

It is an amenable number.

946239089 is a deficient number, since it is larger than the sum of its proper divisors (1).

946239089 is an equidigital number, since it uses as much as digits as its factorization.

946239089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 839808, while the sum is 50.

The square root of 946239089 is about 30760.9994798609. Note that the first 3 decimals coincide. The cubic root of 946239089 is about 981.7486096780.

The spelling of 946239089 in words is "nine hundred forty-six million, two hundred thirty-nine thousand, eighty-nine".