948434621 has 2 divisors, whose sum is σ = 948434622. Its totient is φ = 948434620.

The previous prime is 948434611. The next prime is 948434623. The reversal of 948434621 is 126434849.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 666362596 + 282072025 = 25814^2 + 16795^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-948434621 is a prime.

It is a super-2 number, since 2×948434621² = 1799056460622827282, which contains 22 as substring.

Together with 948434623, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (948434623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 474217310 + 474217311.

It is an arithmetic number, because the mean of its divisors is an integer number (474217311).

Almost surely, 2^948434621 is an apocalyptic number.

It is an amenable number.

948434621 is a deficient number, since it is larger than the sum of its proper divisors (1).

948434621 is an equidigital number, since it uses as much as digits as its factorization.

948434621 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 165888, while the sum is 41.

The square root of 948434621 is about 30796.6657448497. The cubic root of 948434621 is about 982.5073310816.

The spelling of 948434621 in words is "nine hundred forty-eight million, four hundred thirty-four thousand, six hundred twenty-one".