47170439 has 2 divisors, whose sum is σ = 47170440. Its totient is φ = 47170438.

The previous prime is 47170433. The next prime is 47170451. The reversal of 47170439 is 93407174.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 47170439 - 2²⁰ = 46121863 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 47170399 and 47170408.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47170433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23585219 + 23585220.

It is an arithmetic number, because the mean of its divisors is an integer number (23585220).

Almost surely, 2^47170439 is an apocalyptic number.

47170439 is a deficient number, since it is larger than the sum of its proper divisors (1).

47170439 is an equidigital number, since it uses as much as digits as its factorization.

47170439 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21168, while the sum is 35.

The square root of 47170439 is about 6868.0738930212. The cubic root of 47170439 is about 361.3183120536.

The spelling of 47170439 in words is "forty-seven million, one hundred seventy thousand, four hundred thirty-nine".