47861129 has 4 divisors (see below), whose sum is σ = 47982084. Its totient is φ = 47740176.

The previous prime is 47861089. The next prime is 47861131. The reversal of 47861129 is 92116874.

47861129 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 92116874 = 2 ⋅46058437.

It can be written as a sum of positive squares in 2 ways, for example, as 40960000 + 6901129 = 6400^2 + 2627^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-47861129 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 47861092 and 47861101.

It is not an unprimeable number, because it can be changed into a prime (47861159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59882 + ... + 60675.

It is an arithmetic number, because the mean of its divisors is an integer number (11995521).

Almost surely, 2^47861129 is an apocalyptic number.

It is an amenable number.

47861129 is a deficient number, since it is larger than the sum of its proper divisors (120955).

47861129 is a wasteful number, since it uses less digits than its factorization.

47861129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120954.

The product of its digits is 24192, while the sum is 38.

The square root of 47861129 is about 6918.1738197302. The cubic root of 47861129 is about 363.0733003677.

The spelling of 47861129 in words is "forty-seven million, eight hundred sixty-one thousand, one hundred twenty-nine".