47512845 has 32 divisors (see below), whose sum is σ = 85674240. Its totient is φ = 24978240.

The previous prime is 47512837. The next prime is 47512867. The reversal of 47512845 is 54821574.

It is not a de Polignac number, because 47512845 - 2³ = 47512837 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7107 + ... + 12063.

It is an arithmetic number, because the mean of its divisors is an integer number (2677320).

Almost surely, 2^47512845 is an apocalyptic number.

47512845 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

47512845 is a deficient number, since it is larger than the sum of its proper divisors (38161395).

47512845 is a wasteful number, since it uses less digits than its factorization.

47512845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5042 (or 5036 counting only the distinct ones).

The product of its digits is 44800, while the sum is 36.

The square root of 47512845 is about 6892.9561872973. The cubic root of 47512845 is about 362.1904642631.

The spelling of 47512845 in words is "forty-seven million, five hundred twelve thousand, eight hundred forty-five".