47920071 has 8 divisors (see below), whose sum is σ = 67256320. Its totient is φ = 30265272.

The previous prime is 47920051. The next prime is 47920073. The reversal of 47920071 is 17002974.

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

It is not a de Polignac number, because 47920071 - 2⁹ = 47919559 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47920073) 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, 420295 + ... + 420408.

It is an arithmetic number, because the mean of its divisors is an integer number (8407040).

Almost surely, 2^47920071 is an apocalyptic number.

47920071 is a deficient number, since it is larger than the sum of its proper divisors (19336249).

47920071 is a wasteful number, since it uses less digits than its factorization.

47920071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 840725.

The product of its (nonzero) digits is 3528, while the sum is 30.

The square root of 47920071 is about 6922.4324482078. The cubic root of 47920071 is about 363.2222833940. Note that the first 4 decimals are identical.

The spelling of 47920071 in words is "forty-seven million, nine hundred twenty thousand, seventy-one".