472215447 has 24 divisors (see below), whose sum is σ = 768963440. Its totient is φ = 286189200.

The previous prime is 472215431. The next prime is 472215451. The reversal of 472215447 is 744512274.

It is not a de Polignac number, because 472215447 - 2⁴ = 472215431 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 (472215347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 69004 + ... + 75537.

Almost surely, 2^472215447 is an apocalyptic number.

472215447 is a deficient number, since it is larger than the sum of its proper divisors (296747993).

472215447 is a wasteful number, since it uses less digits than its factorization.

472215447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144572 (or 144555 counting only the distinct ones).

The product of its digits is 62720, while the sum is 36.

The square root of 472215447 is about 21730.5187927026. The cubic root of 472215447 is about 778.7177304651.

The spelling of 472215447 in words is "four hundred seventy-two million, two hundred fifteen thousand, four hundred forty-seven".