47031697 has 2 divisors, whose sum is σ = 47031698. Its totient is φ = 47031696.

The previous prime is 47031679. The next prime is 47031703. The reversal of 47031697 is 79613074.

47031697 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

Together with previous prime (47031679) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 33074001 + 13957696 = 5751^2 + 3736^2 .

It is a cyclic number.

It is not a de Polignac number, because 47031697 - 2¹⁵ = 46998929 is a prime.

It is not a weakly prime, because it can be changed into another prime (47031667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23515848 + 23515849.

It is an arithmetic number, because the mean of its divisors is an integer number (23515849).

Almost surely, 2^47031697 is an apocalyptic number.

It is an amenable number.

47031697 is a deficient number, since it is larger than the sum of its proper divisors (1).

47031697 is an equidigital number, since it uses as much as digits as its factorization.

47031697 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31752, while the sum is 37.

The square root of 47031697 is about 6857.9659520881. The cubic root of 47031697 is about 360.9637167054.

It can be divided in two parts, 4703 and 1697, that added together give a square (6400 = 80²).

The spelling of 47031697 in words is "forty-seven million, thirty-one thousand, six hundred ninety-seven".