47705816 has 8 divisors (see below), whose sum is σ = 89448420. Its totient is φ = 23852904.

The previous prime is 47705803. The next prime is 47705821. The reversal of 47705816 is 61850774.

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 47705816.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 2981606 + ... + 2981621.

Almost surely, 2^47705816 is an apocalyptic number.

It is an amenable number.

47705816 is a deficient number, since it is larger than the sum of its proper divisors (41742604).

47705816 is a wasteful number, since it uses less digits than its factorization.

47705816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5963233 (or 5963229 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 38.

The square root of 47705816 is about 6906.9396985930. The cubic root of 47705816 is about 362.6801413018.

The spelling of 47705816 in words is "forty-seven million, seven hundred five thousand, eight hundred sixteen".