47745439 has 8 divisors (see below), whose sum is σ = 54983808. Its totient is φ = 40611480.

The previous prime is 47745419. The next prime is 47745463. The reversal of 47745439 is 93454774.

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

It is not a de Polignac number, because 47745439 - 2⁵ = 47745407 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 47745395 and 47745404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47745409) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25117 + ... + 26950.

It is an arithmetic number, because the mean of its divisors is an integer number (6872976).

Almost surely, 2^47745439 is an apocalyptic number.

47745439 is a deficient number, since it is larger than the sum of its proper divisors (7238369).

47745439 is a wasteful number, since it uses less digits than its factorization.

47745439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52205.

The product of its digits is 423360, while the sum is 43.

The square root of 47745439 is about 6909.8074502840. The cubic root of 47745439 is about 362.7805238807.

It can be divided in two parts, 47745 and 439, that added together give a palindrome (48184).

The spelling of 47745439 in words is "forty-seven million, seven hundred forty-five thousand, four hundred thirty-nine".