47908191 has 8 divisors (see below), whose sum is σ = 64056960. Its totient is φ = 31849112.

The previous prime is 47908187. The next prime is 47908219. The reversal of 47908191 is 19180974.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 47908191 - 2² = 47908187 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47908111) 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, 21165 + ... + 23318.

It is an arithmetic number, because the mean of its divisors is an integer number (8007120).

Almost surely, 2^47908191 is an apocalyptic number.

47908191 is a deficient number, since it is larger than the sum of its proper divisors (16148769).

47908191 is a wasteful number, since it uses less digits than its factorization.

47908191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44845.

The product of its (nonzero) digits is 18144, while the sum is 39.

The square root of 47908191 is about 6921.5743151396. The cubic root of 47908191 is about 363.1922650929.

The spelling of 47908191 in words is "forty-seven million, nine hundred eight thousand, one hundred ninety-one".