472142447 has 4 divisors (see below), whose sum is σ = 539591376. Its totient is φ = 404693520.

The previous prime is 472142443. The next prime is 472142453. The reversal of 472142447 is 744241274.

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

It is not a de Polignac number, because 472142447 - 2² = 472142443 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (472142443) 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, 33724454 + ... + 33724467.

It is an arithmetic number, because the mean of its divisors is an integer number (134897844).

Almost surely, 2^472142447 is an apocalyptic number.

472142447 is a deficient number, since it is larger than the sum of its proper divisors (67448929).

472142447 is an equidigital number, since it uses as much as digits as its factorization.

472142447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67448928.

The product of its digits is 50176, while the sum is 35.

The square root of 472142447 is about 21728.8390624074. The cubic root of 472142447 is about 778.6776009548.

The spelling of 472142447 in words is "four hundred seventy-two million, one hundred forty-two thousand, four hundred forty-seven".