47851982 has 8 divisors (see below), whose sum is σ = 72488952. Its totient is φ = 23689000.

The previous prime is 47851963. The next prime is 47851987. The reversal of 47851982 is 28915874.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47851987) 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, 118244 + ... + 118647.

It is an arithmetic number, because the mean of its divisors is an integer number (9061119).

Almost surely, 2^47851982 is an apocalyptic number.

47851982 is a deficient number, since it is larger than the sum of its proper divisors (24636970).

47851982 is a wasteful number, since it uses less digits than its factorization.

47851982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236994.

The product of its digits is 161280, while the sum is 44.

The square root of 47851982 is about 6917.5127032771. The cubic root of 47851982 is about 363.0501692581.

The spelling of 47851982 in words is "forty-seven million, eight hundred fifty-one thousand, nine hundred eighty-two".