47205387 has 12 divisors (see below), whose sum is σ = 68530800. Its totient is φ = 31310928.

The previous prime is 47205349. The next prime is 47205401. The reversal of 47205387 is 78350274.

It is not a de Polignac number, because 47205387 - 2⁷ = 47205259 is a prime.

It is not an unprimeable number, because it can be changed into a prime (47205307) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11388 + ... + 14969.

It is an arithmetic number, because the mean of its divisors is an integer number (5710900).

Almost surely, 2^47205387 is an apocalyptic number.

47205387 is a deficient number, since it is larger than the sum of its proper divisors (21325413).

47205387 is a wasteful number, since it uses less digits than its factorization.

47205387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26562 (or 26559 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 36.

The square root of 47205387 is about 6870.6176578238. The cubic root of 47205387 is about 361.4075221284.

The spelling of 47205387 in words is "forty-seven million, two hundred five thousand, three hundred eighty-seven".