47521323 has 18 divisors (see below), whose sum is σ = 71288204. Its totient is φ = 31676508.

The previous prime is 47521259. The next prime is 47521333. The reversal of 47521323 is 32312574.

It is not a de Polignac number, because 47521323 - 2⁶ = 47521259 is a prime.

It is a super-2 number, since 2×47521323² = 4516552279340658, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47521333) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 2940 + ... + 10182.

Almost surely, 2^47521323 is an apocalyptic number.

47521323 is a deficient number, since it is larger than the sum of its proper divisors (23766881).

47521323 is an frugal number, since it uses more digits than its factorization.

47521323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7267 (or 7246 counting only the distinct ones).

The product of its digits is 5040, while the sum is 27.

The square root of 47521323 is about 6893.5711354856. The cubic root of 47521323 is about 362.2120055826.

Adding to 47521323 its reverse (32312574), we get a palindrome (79833897).

The spelling of 47521323 in words is "forty-seven million, five hundred twenty-one thousand, three hundred twenty-three".