9471949 has 2 divisors, whose sum is σ = 9471950. Its totient is φ = 9471948.

The previous prime is 9471947. The next prime is 9471971. The reversal of 9471949 is 9491749.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8369449 + 1102500 = 2893^2 + 1050^2 .

It is a cyclic number.

It is not a de Polignac number, because 9471949 - 2¹ = 9471947 is a prime.

Together with 9471947, it forms a pair of twin primes.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9471947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4735974 + 4735975.

It is an arithmetic number, because the mean of its divisors is an integer number (4735975).

Almost surely, 2^9471949 is an apocalyptic number.

It is an amenable number.

9471949 is a deficient number, since it is larger than the sum of its proper divisors (1).

9471949 is an equidigital number, since it uses as much as digits as its factorization.

9471949 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 81648, while the sum is 43.

The square root of 9471949 is about 3077.6531643445. The cubic root of 9471949 is about 211.5825191658.

The spelling of 9471949 in words is "nine million, four hundred seventy-one thousand, nine hundred forty-nine".