47700238 has 8 divisors (see below), whose sum is σ = 72183888. Its totient is φ = 23638944.

The previous prime is 47700223. The next prime is 47700239. The reversal of 47700238 is 83200774.

47700238 = 72² + 73² + ... + 523².

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47700239) 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, 105306 + ... + 105757.

It is an arithmetic number, because the mean of its divisors is an integer number (9022986).

Almost surely, 2^47700238 is an apocalyptic number.

47700238 is a deficient number, since it is larger than the sum of its proper divisors (24483650).

47700238 is a wasteful number, since it uses less digits than its factorization.

47700238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211178.

The product of its (nonzero) digits is 9408, while the sum is 31.

The square root of 47700238 is about 6906.5358900103. The cubic root of 47700238 is about 362.6660052987. Note that the first 3 decimals are identical.

The spelling of 47700238 in words is "forty-seven million, seven hundred thousand, two hundred thirty-eight".