47212742 has 8 divisors (see below), whose sum is σ = 70849416. Its totient is φ = 23596272.

The previous prime is 47212733. The next prime is 47212747. The reversal of 47212742 is 24721274.

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 (47212747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4133 + ... + 10559.

It is an arithmetic number, because the mean of its divisors is an integer number (8856177).

Almost surely, 2^47212742 is an apocalyptic number.

47212742 is a deficient number, since it is larger than the sum of its proper divisors (23636674).

47212742 is a wasteful number, since it uses less digits than its factorization.

47212742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10102.

The product of its digits is 6272, while the sum is 29.

The square root of 47212742 is about 6871.1528872526. The cubic root of 47212742 is about 361.4262912735.

The spelling of 47212742 in words is "forty-seven million, two hundred twelve thousand, seven hundred forty-two".