47472223 has 4 divisors (see below), whose sum is σ = 47488248. Its totient is φ = 47456200.

The previous prime is 47472197. The next prime is 47472251. The reversal of 47472223 is 32227474.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-47472223 is a prime.

It is a super-2 number, since 2×47472223² = 4507223913123458, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47472263) 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, 2128 + ... + 9973.

It is an arithmetic number, because the mean of its divisors is an integer number (11872062).

Almost surely, 2^47472223 is an apocalyptic number.

47472223 is a deficient number, since it is larger than the sum of its proper divisors (16025).

47472223 is a wasteful number, since it uses less digits than its factorization.

47472223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16024.

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

The square root of 47472223 is about 6890.0089259739. The cubic root of 47472223 is about 362.0872143170.

Adding to 47472223 its reverse (32227474), we get a palindrome (79699697).

It can be divided in two parts, 4 and 7472223, that multiplied together give a palindrome (29888892).

The spelling of 47472223 in words is "forty-seven million, four hundred seventy-two thousand, two hundred twenty-three".