47931361 has 2 divisors, whose sum is σ = 47931362. Its totient is φ = 47931360.

The previous prime is 47931353. The next prime is 47931371. The reversal of 47931361 is 16313974.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 44302336 + 3629025 = 6656^2 + 1905^2 .

It is a cyclic number.

It is not a de Polignac number, because 47931361 - 2³ = 47931353 is a prime.

It is not a weakly prime, because it can be changed into another prime (47931371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23965680 + 23965681.

It is an arithmetic number, because the mean of its divisors is an integer number (23965681).

Almost surely, 2^47931361 is an apocalyptic number.

It is an amenable number.

47931361 is a deficient number, since it is larger than the sum of its proper divisors (1).

47931361 is an equidigital number, since it uses as much as digits as its factorization.

47931361 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13608, while the sum is 34.

The square root of 47931361 is about 6923.2478649836. The cubic root of 47931361 is about 363.2508062898.

The spelling of 47931361 in words is "forty-seven million, nine hundred thirty-one thousand, three hundred sixty-one".