47421527 has 2 divisors, whose sum is σ = 47421528. Its totient is φ = 47421526.

The previous prime is 47421523. The next prime is 47421529. The reversal of 47421527 is 72512474.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 47421527 - 2² = 47421523 is a prime.

Together with 47421529, it forms a pair of twin primes.

It is a Chen prime.

It is equal to p_2855507 and since 47421527 and 2855507 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 47421493 and 47421502.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47421523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23710763 + 23710764.

It is an arithmetic number, because the mean of its divisors is an integer number (23710764).

Almost surely, 2^47421527 is an apocalyptic number.

47421527 is a deficient number, since it is larger than the sum of its proper divisors (1).

47421527 is an equidigital number, since it uses as much as digits as its factorization.

47421527 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15680, while the sum is 32.

The square root of 47421527 is about 6886.3289930122. The cubic root of 47421527 is about 361.9582763792.

The spelling of 47421527 in words is "forty-seven million, four hundred twenty-one thousand, five hundred twenty-seven".