47134879 has 4 divisors (see below), whose sum is σ = 51419880. Its totient is φ = 42849880.

The previous prime is 47134853. The next prime is 47134903. The reversal of 47134879 is 97843174.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 47134879 - 2⁵ = 47134847 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47134819) 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, 2142484 + ... + 2142505.

It is an arithmetic number, because the mean of its divisors is an integer number (12854970).

Almost surely, 2^47134879 is an apocalyptic number.

47134879 is a deficient number, since it is larger than the sum of its proper divisors (4285001).

47134879 is a wasteful number, since it uses less digits than its factorization.

47134879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4285000.

The product of its digits is 169344, while the sum is 43.

The square root of 47134879 is about 6865.4846150873. The cubic root of 47134879 is about 361.2274945172.

The spelling of 47134879 in words is "forty-seven million, one hundred thirty-four thousand, eight hundred seventy-nine".