47271949 has 2 divisors, whose sum is σ = 47271950. Its totient is φ = 47271948.

The previous prime is 47271929. The next prime is 47271971. The reversal of 47271949 is 94917274.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 36216324 + 11055625 = 6018^2 + 3325^2 .

It is a cyclic number.

It is not a de Polignac number, because 47271949 - 2⁷ = 47271821 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47271929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23635974 + 23635975.

It is an arithmetic number, because the mean of its divisors is an integer number (23635975).

Almost surely, 2^47271949 is an apocalyptic number.

It is an amenable number.

47271949 is a deficient number, since it is larger than the sum of its proper divisors (1).

47271949 is an equidigital number, since it uses as much as digits as its factorization.

47271949 is an evil number, because the sum of its binary digits is even.

The product of its digits is 127008, while the sum is 43.

The square root of 47271949 is about 6875.4599118895. The cubic root of 47271949 is about 361.5773100215.

The spelling of 47271949 in words is "forty-seven million, two hundred seventy-one thousand, nine hundred forty-nine".