949229789 has 2 divisors, whose sum is σ = 949229790. Its totient is φ = 949229788.

The previous prime is 949229753. The next prime is 949229791. The reversal of 949229789 is 987922949.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 829152025 + 120077764 = 28795^2 + 10958^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-949229789 is a prime.

Together with 949229791, 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 (949229689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 474614894 + 474614895.

It is an arithmetic number, because the mean of its divisors is an integer number (474614895).

Almost surely, 2^949229789 is an apocalyptic number.

It is an amenable number.

949229789 is a deficient number, since it is larger than the sum of its proper divisors (1).

949229789 is an equidigital number, since it uses as much as digits as its factorization.

949229789 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5878656, while the sum is 59.

The square root of 949229789 is about 30809.5730090503. The cubic root of 949229789 is about 982.7818325735.

The spelling of 949229789 in words is "nine hundred forty-nine million, two hundred twenty-nine thousand, seven hundred eighty-nine".