47272657 has 2 divisors, whose sum is σ = 47272658. Its totient is φ = 47272656.

The previous prime is 47272633. The next prime is 47272663. The reversal of 47272657 is 75627274.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 32764176 + 14508481 = 5724^2 + 3809^2 .

It is a cyclic number.

It is not a de Polignac number, because 47272657 - 2¹⁹ = 46748369 is a prime.

It is not a weakly prime, because it can be changed into another prime (47272607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23636328 + 23636329.

It is an arithmetic number, because the mean of its divisors is an integer number (23636329).

Almost surely, 2^47272657 is an apocalyptic number.

It is an amenable number.

47272657 is a deficient number, since it is larger than the sum of its proper divisors (1).

47272657 is an equidigital number, since it uses as much as digits as its factorization.

47272657 is an evil number, because the sum of its binary digits is even.

The product of its digits is 164640, while the sum is 40.

The square root of 47272657 is about 6875.5113991615. The cubic root of 47272657 is about 361.5791151474.

The spelling of 47272657 in words is "forty-seven million, two hundred seventy-two thousand, six hundred fifty-seven".