47129718 has 8 divisors (see below), whose sum is σ = 94259448. Its totient is φ = 15709904.

The previous prime is 47129717. The next prime is 47129801. The reversal of 47129718 is 81792174.

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

47129718 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47129711) 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, 3927471 + ... + 3927482.

It is an arithmetic number, because the mean of its divisors is an integer number (11782431).

Almost surely, 2^47129718 is an apocalyptic number.

47129718 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

47129718 is a wasteful number, since it uses less digits than its factorization.

47129718 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7854958.

The product of its digits is 28224, while the sum is 39.

The square root of 47129718 is about 6865.1087391242. The cubic root of 47129718 is about 361.2143099202.

The spelling of 47129718 in words is "forty-seven million, one hundred twenty-nine thousand, seven hundred eighteen".