47421047 has 2 divisors, whose sum is σ = 47421048. Its totient is φ = 47421046.

The previous prime is 47421001. The next prime is 47421053. The reversal of 47421047 is 74012474.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 47421047 - 2⁶ = 47420983 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 (47421547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23710523 + 23710524.

It is an arithmetic number, because the mean of its divisors is an integer number (23710524).

Almost surely, 2^47421047 is an apocalyptic number.

47421047 is a deficient number, since it is larger than the sum of its proper divisors (1).

47421047 is an equidigital number, since it uses as much as digits as its factorization.

47421047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6272, while the sum is 29.

The square root of 47421047 is about 6886.2941412635. The cubic root of 47421047 is about 361.9570551296.

The spelling of 47421047 in words is "forty-seven million, four hundred twenty-one thousand, forty-seven".