47309841 has 6 divisors (see below), whose sum is σ = 68336450. Its totient is φ = 31539888.

The previous prime is 47309833. The next prime is 47309851. The reversal of 47309841 is 14890374.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 27248400 + 20061441 = 5220^2 + 4479^2 .

It is not a de Polignac number, because 47309841 - 2³ = 47309833 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 47309796 and 47309805.

It is not an unprimeable number, because it can be changed into a prime (47309851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2628316 + ... + 2628333.

Almost surely, 2^47309841 is an apocalyptic number.

It is an amenable number.

47309841 is a deficient number, since it is larger than the sum of its proper divisors (21026609).

47309841 is a wasteful number, since it uses less digits than its factorization.

47309841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5256655 (or 5256652 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 47309841 is about 6878.2149573854. The cubic root of 47309841 is about 361.6738946316.

The spelling of 47309841 in words is "forty-seven million, three hundred nine thousand, eight hundred forty-one".