47628949 has 2 divisors, whose sum is σ = 47628950. Its totient is φ = 47628948.

The previous prime is 47628943. The next prime is 47629061. The reversal of 47628949 is 94982674.

47628949 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 45468049 + 2160900 = 6743^2 + 1470^2 .

It is a cyclic number.

It is not a de Polignac number, because 47628949 - 2³ = 47628941 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47628941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23814474 + 23814475.

It is an arithmetic number, because the mean of its divisors is an integer number (23814475).

Almost surely, 2^47628949 is an apocalyptic number.

It is an amenable number.

47628949 is a deficient number, since it is larger than the sum of its proper divisors (1).

47628949 is an equidigital number, since it uses as much as digits as its factorization.

47628949 is an odious number, because the sum of its binary digits is odd.

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

The square root of 47628949 is about 6901.3729793426. The cubic root of 47628949 is about 362.4852445837.

The spelling of 47628949 in words is "forty-seven million, six hundred twenty-eight thousand, nine hundred forty-nine".