47720393 has 8 divisors (see below), whose sum is σ = 54797760. Its totient is φ = 40708080.

The previous prime is 47720363. The next prime is 47720401. The reversal of 47720393 is 39302774.

47720393 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 47720393 - 2⁸ = 47720137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47720303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14678 + ... + 17631.

It is an arithmetic number, because the mean of its divisors is an integer number (6849720).

Almost surely, 2^47720393 is an apocalyptic number.

It is an amenable number.

47720393 is a deficient number, since it is larger than the sum of its proper divisors (7077367).

47720393 is a wasteful number, since it uses less digits than its factorization.

47720393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32527.

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

The square root of 47720393 is about 6907.9948610288. The cubic root of 47720393 is about 362.7170777488.

The spelling of 47720393 in words is "forty-seven million, seven hundred twenty thousand, three hundred ninety-three".