47082905 has 4 divisors (see below), whose sum is σ = 56499492. Its totient is φ = 37666320.

The previous prime is 47082901. The next prime is 47082943. The reversal of 47082905 is 50928074.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 50928074 = 2 ⋅25464037.

It can be written as a sum of positive squares in 2 ways, for example, as 5234944 + 41847961 = 2288^2 + 6469^2 .

It is not a de Polignac number, because 47082905 - 2² = 47082901 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47082901) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4708286 + ... + 4708295.

It is an arithmetic number, because the mean of its divisors is an integer number (14124873).

Almost surely, 2^47082905 is an apocalyptic number.

It is an amenable number.

47082905 is a deficient number, since it is larger than the sum of its proper divisors (9416587).

47082905 is an equidigital number, since it uses as much as digits as its factorization.

47082905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9416586.

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 47082905 is about 6861.6984049140. The cubic root of 47082905 is about 361.0946746672.

The spelling of 47082905 in words is "forty-seven million, eighty-two thousand, nine hundred five".