47899129 has 4 divisors (see below), whose sum is σ = 48024576. Its totient is φ = 47773684.

The previous prime is 47899073. The next prime is 47899141. The reversal of 47899129 is 92199874.

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 a cyclic number.

It is not a de Polignac number, because 47899129 - 2¹⁵ = 47866361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47899529) 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, 62149 + ... + 62914.

It is an arithmetic number, because the mean of its divisors is an integer number (12006144).

Almost surely, 2^47899129 is an apocalyptic number.

It is an amenable number.

47899129 is a deficient number, since it is larger than the sum of its proper divisors (125447).

47899129 is a wasteful number, since it uses less digits than its factorization.

47899129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125446.

The product of its digits is 326592, while the sum is 49.

The square root of 47899129 is about 6920.9196643221. The cubic root of 47899129 is about 363.1693639579.

The spelling of 47899129 in words is "forty-seven million, eight hundred ninety-nine thousand, one hundred twenty-nine".