47643446 has 8 divisors (see below), whose sum is σ = 71724000. Its totient is φ = 23735448.

The previous prime is 47643443. The next prime is 47643481. The reversal of 47643446 is 64434674.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47643443) 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 3 ways as a sum of consecutive naturals, for example, 42446 + ... + 43553.

It is an arithmetic number, because the mean of its divisors is an integer number (8965500).

Almost surely, 2^47643446 is an apocalyptic number.

47643446 is a deficient number, since it is larger than the sum of its proper divisors (24080554).

47643446 is a wasteful number, since it uses less digits than its factorization.

47643446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86278.

The product of its digits is 193536, while the sum is 38.

The square root of 47643446 is about 6902.4231976893. The cubic root of 47643446 is about 362.5220178461.

The spelling of 47643446 in words is "forty-seven million, six hundred forty-three thousand, four hundred forty-six".