948276409 has 2 divisors, whose sum is σ = 948276410. Its totient is φ = 948276408.

The previous prime is 948276403. The next prime is 948276443. The reversal of 948276409 is 904672849.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 507150400 + 441126009 = 22520^2 + 21003^2 .

It is an emirp because it is prime and its reverse (904672849) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 948276409 - 2⁷ = 948276281 is a prime.

It is not a weakly prime, because it can be changed into another prime (948276403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 474138204 + 474138205.

It is an arithmetic number, because the mean of its divisors is an integer number (474138205).

Almost surely, 2^948276409 is an apocalyptic number.

It is an amenable number.

948276409 is a deficient number, since it is larger than the sum of its proper divisors (1).

948276409 is an equidigital number, since it uses as much as digits as its factorization.

948276409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 870912, while the sum is 49.

The square root of 948276409 is about 30794.0969830258. The cubic root of 948276409 is about 982.4526961106.

The spelling of 948276409 in words is "nine hundred forty-eight million, two hundred seventy-six thousand, four hundred nine".