47946191 has 16 divisors (see below), whose sum is σ = 51976704. Its totient is φ = 44108064.

The previous prime is 47946167. The next prime is 47946209. The reversal of 47946191 is 19164974.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-47946191 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 (47946121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 87380 + ... + 87926.

It is an arithmetic number, because the mean of its divisors is an integer number (3248544).

Almost surely, 2^47946191 is an apocalyptic number.

47946191 is a deficient number, since it is larger than the sum of its proper divisors (4030513).

47946191 is a wasteful number, since it uses less digits than its factorization.

47946191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 710.

The product of its digits is 54432, while the sum is 41.

The square root of 47946191 is about 6924.3188112622. The cubic root of 47946191 is about 363.2882657864.

The spelling of 47946191 in words is "forty-seven million, nine hundred forty-six thousand, one hundred ninety-one".