47431029 has 4 divisors (see below), whose sum is σ = 63241376. Its totient is φ = 31620684.

The previous prime is 47431009. The next prime is 47431031. The reversal of 47431029 is 92013474.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 47431029 - 2⁵ = 47430997 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 = 47430987 and 47431005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47431009) 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 in 3 ways as a sum of consecutive naturals, for example, 7905169 + ... + 7905174.

It is an arithmetic number, because the mean of its divisors is an integer number (15810344).

Almost surely, 2^47431029 is an apocalyptic number.

It is an amenable number.

47431029 is a deficient number, since it is larger than the sum of its proper divisors (15810347).

47431029 is a wasteful number, since it uses less digits than its factorization.

47431029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15810346.

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 47431029 is about 6887.0188761176. The cubic root of 47431029 is about 361.9824503361.

The spelling of 47431029 in words is "forty-seven million, four hundred thirty-one thousand, twenty-nine".