47214647 has 2 divisors, whose sum is σ = 47214648. Its totient is φ = 47214646.

The previous prime is 47214637. The next prime is 47214659. The reversal of 47214647 is 74641274.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 47214647 - 2⁴ = 47214631 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47214617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23607323 + 23607324.

It is an arithmetic number, because the mean of its divisors is an integer number (23607324).

Almost surely, 2^47214647 is an apocalyptic number.

47214647 is a deficient number, since it is larger than the sum of its proper divisors (1).

47214647 is an equidigital number, since it uses as much as digits as its factorization.

47214647 is an evil number, because the sum of its binary digits is even.

The product of its digits is 37632, while the sum is 35.

The square root of 47214647 is about 6871.2915088795. The cubic root of 47214647 is about 361.4311523046.

The spelling of 47214647 in words is "forty-seven million, two hundred fourteen thousand, six hundred forty-seven".