47074847 has 4 divisors (see below), whose sum is σ = 48223056. Its totient is φ = 45926640.

The previous prime is 47074747. The next prime is 47074849. The reversal of 47074847 is 74847074.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 47074847 - 2⁸ = 47074591 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41), and also a Moran number because the ratio is a prime number: 1148167 = 47074847 / (4 + 7 + 0 + 7 + 4 + 8 + 4 + 7).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47074849) 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, 574043 + ... + 574124.

It is an arithmetic number, because the mean of its divisors is an integer number (12055764).

Almost surely, 2^47074847 is an apocalyptic number.

47074847 is a deficient number, since it is larger than the sum of its proper divisors (1148209).

47074847 is a wasteful number, since it uses less digits than its factorization.

47074847 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1148208.

The product of its (nonzero) digits is 175616, while the sum is 41.

The square root of 47074847 is about 6861.1112073774. Note that the first 3 decimals coincide. The cubic root of 47074847 is about 361.0740736522.

The spelling of 47074847 in words is "forty-seven million, seventy-four thousand, eight hundred forty-seven".