47730239 has 8 divisors (see below), whose sum is σ = 49206528. Its totient is φ = 46273240.

The previous prime is 47730227. The next prime is 47730253. The reversal of 47730239 is 93203774.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-47730239 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 47730199 and 47730208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47730209) 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, 284 + ... + 9774.

It is an arithmetic number, because the mean of its divisors is an integer number (6150816).

Almost surely, 2^47730239 is an apocalyptic number.

47730239 is a deficient number, since it is larger than the sum of its proper divisors (1476289).

47730239 is a wasteful number, since it uses less digits than its factorization.

47730239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9645.

The product of its (nonzero) digits is 31752, while the sum is 35.

The square root of 47730239 is about 6908.7074768006. The cubic root of 47730239 is about 362.7420221281.

The spelling of 47730239 in words is "forty-seven million, seven hundred thirty thousand, two hundred thirty-nine".