47085419 has 2 divisors, whose sum is σ = 47085420. Its totient is φ = 47085418.

The previous prime is 47085397. The next prime is 47085421. The reversal of 47085419 is 91458074.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 47085419 - 2²⁴ = 30308203 is a prime.

It is a super-2 number, since 2×47085419² = 4434073364811122, which contains 22 as substring.

Together with 47085421, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (47085499) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23542709 + 23542710.

It is an arithmetic number, because the mean of its divisors is an integer number (23542710).

Almost surely, 2^47085419 is an apocalyptic number.

47085419 is a deficient number, since it is larger than the sum of its proper divisors (1).

47085419 is an equidigital number, since it uses as much as digits as its factorization.

47085419 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40320, while the sum is 38.

The square root of 47085419 is about 6861.8815932658. The cubic root of 47085419 is about 361.1011014574.

The spelling of 47085419 in words is "forty-seven million, eighty-five thousand, four hundred nineteen".