47810657 has 2 divisors, whose sum is σ = 47810658. Its totient is φ = 47810656.

The previous prime is 47810627. The next prime is 47810699. The reversal of 47810657 is 75601874.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 47389456 + 421201 = 6884^2 + 649^2 .

It is a cyclic number.

It is not a de Polignac number, because 47810657 - 2¹⁴ = 47794273 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 47810657.

It is not a weakly prime, because it can be changed into another prime (47810617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23905328 + 23905329.

It is an arithmetic number, because the mean of its divisors is an integer number (23905329).

Almost surely, 2^47810657 is an apocalyptic number.

It is an amenable number.

47810657 is a deficient number, since it is larger than the sum of its proper divisors (1).

47810657 is an equidigital number, since it uses as much as digits as its factorization.

47810657 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 47040, while the sum is 38.

The square root of 47810657 is about 6914.5250740741. The cubic root of 47810657 is about 362.9456290449.

The spelling of 47810657 in words is "forty-seven million, eight hundred ten thousand, six hundred fifty-seven".