47228957 has 2 divisors, whose sum is σ = 47228958. Its totient is φ = 47228956.

The previous prime is 47228933. The next prime is 47228981. The reversal of 47228957 is 75982274.

It is a balanced prime because it is at equal distance from previous prime (47228933) and next prime (47228981).

It can be written as a sum of positive squares in only one way, i.e., 47183161 + 45796 = 6869^2 + 214^2 .

It is a cyclic number.

It is not a de Polignac number, because 47228957 - 2⁶ = 47228893 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47228917) 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, 23614478 + 23614479.

It is an arithmetic number, because the mean of its divisors is an integer number (23614479).

Almost surely, 2^47228957 is an apocalyptic number.

It is an amenable number.

47228957 is a deficient number, since it is larger than the sum of its proper divisors (1).

47228957 is an equidigital number, since it uses as much as digits as its factorization.

47228957 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 282240, while the sum is 44.

The square root of 47228957 is about 6872.3327189536. The cubic root of 47228957 is about 361.4676632723.

The spelling of 47228957 in words is "forty-seven million, two hundred twenty-eight thousand, nine hundred fifty-seven".