47140647 has 8 divisors (see below), whose sum is σ = 63431280. Its totient is φ = 31138560.

The previous prime is 47140619. The next prime is 47140673. The reversal of 47140647 is 74604174.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 47140647 - 2⁸ = 47140391 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47140607) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71754 + ... + 72407.

It is an arithmetic number, because the mean of its divisors is an integer number (7928910).

Almost surely, 2^47140647 is an apocalyptic number.

47140647 is a deficient number, since it is larger than the sum of its proper divisors (16290633).

47140647 is a wasteful number, since it uses less digits than its factorization.

47140647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144273.

The product of its (nonzero) digits is 18816, while the sum is 33.

The square root of 47140647 is about 6865.9046745495. The cubic root of 47140647 is about 361.2422286535.

The spelling of 47140647 in words is "forty-seven million, one hundred forty thousand, six hundred forty-seven".