47209238 has 16 divisors (see below), whose sum is σ = 75887280. Its totient is φ = 21947136.

The previous prime is 47209237. The next prime is 47209247. The reversal of 47209238 is 83290274.

It is a junction number, because it is equal to n+sod(n) for n = 47209198 and 47209207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47209237) 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, 5543 + ... + 11186.

It is an arithmetic number, because the mean of its divisors is an integer number (4742955).

Almost surely, 2^47209238 is an apocalyptic number.

47209238 is a deficient number, since it is larger than the sum of its proper divisors (28678042).

47209238 is a wasteful number, since it uses less digits than its factorization.

47209238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16831.

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 47209238 is about 6870.8979034767. The cubic root of 47209238 is about 361.4173496969.

The spelling of 47209238 in words is "forty-seven million, two hundred nine thousand, two hundred thirty-eight".