47660385 has 32 divisors (see below), whose sum is σ = 77885568. Its totient is φ = 24883200.

The previous prime is 47660381. The next prime is 47660399. The reversal of 47660385 is 58306674.

It is not a de Polignac number, because 47660385 - 2² = 47660381 is a prime.

It is not an unprimeable number, because it can be changed into a prime (47660381) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 246849 + ... + 247041.

It is an arithmetic number, because the mean of its divisors is an integer number (2433924).

Almost surely, 2^47660385 is an apocalyptic number.

It is an amenable number.

47660385 is a deficient number, since it is larger than the sum of its proper divisors (30225183).

47660385 is a wasteful number, since it uses less digits than its factorization.

47660385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 465.

The product of its (nonzero) digits is 120960, while the sum is 39.

The square root of 47660385 is about 6903.6501214937. The cubic root of 47660385 is about 362.5649760658.

The spelling of 47660385 in words is "forty-seven million, six hundred sixty thousand, three hundred eighty-five".