47473139 has 8 divisors (see below), whose sum is σ = 54296928. Its totient is φ = 40659840.

The previous prime is 47473133. The next prime is 47473147. The reversal of 47473139 is 93137474.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 47473139 - 2⁴ = 47473123 is a prime.

It is not an unprimeable number, because it can be changed into a prime (47473133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14939 + ... + 17835.

It is an arithmetic number, because the mean of its divisors is an integer number (6787116).

Almost surely, 2^47473139 is an apocalyptic number.

47473139 is a deficient number, since it is larger than the sum of its proper divisors (6823789).

47473139 is a wasteful number, since it uses less digits than its factorization.

47473139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5245.

The product of its digits is 63504, while the sum is 38.

The square root of 47473139 is about 6890.0753987166. The cubic root of 47473139 is about 362.0895431859.

The spelling of 47473139 in words is "forty-seven million, four hundred seventy-three thousand, one hundred thirty-nine".