47144647 has 8 divisors (see below), whose sum is σ = 51481872. Its totient is φ = 42816000.

The previous prime is 47144597. The next prime is 47144651. The reversal of 47144647 is 74644174.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-47144647 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47145647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16273 + ... + 18949.

It is an arithmetic number, because the mean of its divisors is an integer number (6435234).

Almost surely, 2^47144647 is an apocalyptic number.

47144647 is a deficient number, since it is larger than the sum of its proper divisors (4337225).

47144647 is a wasteful number, since it uses less digits than its factorization.

47144647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4289.

The product of its digits is 75264, while the sum is 37.

The square root of 47144647 is about 6866.1959628312. The cubic root of 47144647 is about 361.2524457955.

The spelling of 47144647 in words is "forty-seven million, one hundred forty-four thousand, six hundred forty-seven".