47521742 has 8 divisors (see below), whose sum is σ = 71409600. Its totient is φ = 23718544.

The previous prime is 47521741. The next prime is 47521753. The reversal of 47521742 is 24712574.

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

It is a junction number, because it is equal to n+sod(n) for n = 47521699 and 47521708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47521741) 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, 19742 + ... + 22017.

It is an arithmetic number, because the mean of its divisors is an integer number (8926200).

Almost surely, 2^47521742 is an apocalyptic number.

47521742 is a deficient number, since it is larger than the sum of its proper divisors (23887858).

47521742 is a wasteful number, since it uses less digits than its factorization.

47521742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42330.

The product of its digits is 15680, while the sum is 32.

The square root of 47521742 is about 6893.6015260530. The cubic root of 47521742 is about 362.2130701320.

The spelling of 47521742 in words is "forty-seven million, five hundred twenty-one thousand, seven hundred forty-two".