47171701 has 2 divisors, whose sum is σ = 47171702. Its totient is φ = 47171700.

The previous prime is 47171693. The next prime is 47171713. The reversal of 47171701 is 10717174.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 34398225 + 12773476 = 5865^2 + 3574^2 .

It is a cyclic number.

It is not a de Polignac number, because 47171701 - 2³ = 47171693 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 47171701.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47171741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23585850 + 23585851.

It is an arithmetic number, because the mean of its divisors is an integer number (23585851).

Almost surely, 2^47171701 is an apocalyptic number.

It is an amenable number.

47171701 is a deficient number, since it is larger than the sum of its proper divisors (1).

47171701 is an equidigital number, since it uses as much as digits as its factorization.

47171701 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1372, while the sum is 28.

The square root of 47171701 is about 6868.1657667823. The cubic root of 47171701 is about 361.3215342669.

Adding to 47171701 its reverse (10717174), we get a palindrome (57888875).

The spelling of 47171701 in words is "forty-seven million, one hundred seventy-one thousand, seven hundred one".