47609257 has 2 divisors, whose sum is σ = 47609258. Its totient is φ = 47609256.

The previous prime is 47609251. The next prime is 47609291. The reversal of 47609257 is 75290674.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 34857216 + 12752041 = 5904^2 + 3571^2 .

It is a cyclic number.

It is not a de Polignac number, because 47609257 - 2¹⁹ = 47084969 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (47609251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23804628 + 23804629.

It is an arithmetic number, because the mean of its divisors is an integer number (23804629).

Almost surely, 2^47609257 is an apocalyptic number.

It is an amenable number.

47609257 is a deficient number, since it is larger than the sum of its proper divisors (1).

47609257 is an equidigital number, since it uses as much as digits as its factorization.

47609257 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 105840, while the sum is 40.

The square root of 47609257 is about 6899.9461592102. The cubic root of 47609257 is about 362.4352816687.

The spelling of 47609257 in words is "forty-seven million, six hundred nine thousand, two hundred fifty-seven".