47517427 has 2 divisors, whose sum is σ = 47517428. Its totient is φ = 47517426.

The previous prime is 47517409. The next prime is 47517439. The reversal of 47517427 is 72471574.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 47517427 - 2¹⁵ = 47484659 is a prime.

It is equal to p_2860939 and since 47517427 and 2860939 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (47517467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23758713 + 23758714.

It is an arithmetic number, because the mean of its divisors is an integer number (23758714).

Almost surely, 2^47517427 is an apocalyptic number.

47517427 is a deficient number, since it is larger than the sum of its proper divisors (1).

47517427 is an equidigital number, since it uses as much as digits as its factorization.

47517427 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 54880, while the sum is 37.

The square root of 47517427 is about 6893.2885475657. The cubic root of 47517427 is about 362.2021067523.

The spelling of 47517427 in words is "forty-seven million, five hundred seventeen thousand, four hundred twenty-seven".