47171693 has 2 divisors, whose sum is σ = 47171694. Its totient is φ = 47171692.

The previous prime is 47171681. The next prime is 47171701. The reversal of 47171693 is 39617174.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 46758244 + 413449 = 6838^2 + 643^2 .

It is a cyclic number.

It is not a de Polignac number, because 47171693 - 2⁶ = 47171629 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47174693) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23585846 + 23585847.

It is an arithmetic number, because the mean of its divisors is an integer number (23585847).

Almost surely, 2^47171693 is an apocalyptic number.

It is an amenable number.

47171693 is a deficient number, since it is larger than the sum of its proper divisors (1).

47171693 is an equidigital number, since it uses as much as digits as its factorization.

47171693 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 31752, while the sum is 38.

The square root of 47171693 is about 6868.1651843851. The cubic root of 47171693 is about 361.3215138410.

The spelling of 47171693 in words is "forty-seven million, one hundred seventy-one thousand, six hundred ninety-three".