47212743 has 4 divisors (see below), whose sum is σ = 62950328. Its totient is φ = 31475160.

The previous prime is 47212733. The next prime is 47212747. The reversal of 47212743 is 34721274.

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

It is not a de Polignac number, because 47212743 - 2⁶ = 47212679 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 47212743.

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 polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7868788 + ... + 7868793.

It is an arithmetic number, because the mean of its divisors is an integer number (15737582).

Almost surely, 2^47212743 is an apocalyptic number.

47212743 is a deficient number, since it is larger than the sum of its proper divisors (15737585).

47212743 is a wasteful number, since it uses less digits than its factorization.

47212743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15737584.

The product of its digits is 9408, while the sum is 30.

The square root of 47212743 is about 6871.1529600206. The cubic root of 47212743 is about 361.4262938253.

The spelling of 47212743 in words is "forty-seven million, two hundred twelve thousand, seven hundred forty-three".