47063657 has 2 divisors, whose sum is σ = 47063658. Its totient is φ = 47063656.

The previous prime is 47063623. The next prime is 47063671. The reversal of 47063657 is 75636074.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40246336 + 6817321 = 6344^2 + 2611^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-47063657 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 47063657.

It is not a weakly prime, because it can be changed into another prime (47063617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23531828 + 23531829.

It is an arithmetic number, because the mean of its divisors is an integer number (23531829).

Almost surely, 2^47063657 is an apocalyptic number.

It is an amenable number.

47063657 is a deficient number, since it is larger than the sum of its proper divisors (1).

47063657 is an equidigital number, since it uses as much as digits as its factorization.

47063657 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 105840, while the sum is 38.

The square root of 47063657 is about 6860.2956933357. The cubic root of 47063657 is about 361.0454614928.

The spelling of 47063657 in words is "forty-seven million, sixty-three thousand, six hundred fifty-seven".