47424073 has 4 divisors (see below), whose sum is σ = 47442628. Its totient is φ = 47405520.

The previous prime is 47424059. The next prime is 47424109. The reversal of 47424073 is 37042474.

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

It can be written as a sum of positive squares in 2 ways, for example, as 23687689 + 23736384 = 4867^2 + 4872^2 .

It is a cyclic number.

It is not a de Polignac number, because 47424073 - 2²¹ = 45326921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47424473) 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, 4686 + ... + 10807.

It is an arithmetic number, because the mean of its divisors is an integer number (11860657).

Almost surely, 2^47424073 is an apocalyptic number.

It is an amenable number.

47424073 is a deficient number, since it is larger than the sum of its proper divisors (18555).

47424073 is a wasteful number, since it uses less digits than its factorization.

47424073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18554.

The product of its (nonzero) digits is 18816, while the sum is 31.

The square root of 47424073 is about 6886.5138495468. The cubic root of 47424073 is about 361.9647539527.

The spelling of 47424073 in words is "forty-seven million, four hundred twenty-four thousand, seventy-three".