472247905 has 16 divisors (see below), whose sum is σ = 575979984. Its totient is φ = 371660800.

The previous prime is 472247903. The next prime is 472247911. The reversal of 472247905 is 509742274.

It can be written as a sum of positive squares in 8 ways, for example, as 37650496 + 434597409 = 6136^2 + 20847^2 .

It is not a de Polignac number, because 472247905 - 2¹ = 472247903 is a prime.

It is not an unprimeable number, because it can be changed into a prime (472247903) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 74355 + ... + 80455.

It is an arithmetic number, because the mean of its divisors is an integer number (35998749).

Almost surely, 2^472247905 is an apocalyptic number.

It is an amenable number.

472247905 is a deficient number, since it is larger than the sum of its proper divisors (103732079).

472247905 is a wasteful number, since it uses less digits than its factorization.

472247905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6356.

The product of its (nonzero) digits is 141120, while the sum is 40.

The square root of 472247905 is about 21731.2656097154. The cubic root of 472247905 is about 778.7355719265.

The spelling of 472247905 in words is "four hundred seventy-two million, two hundred forty-seven thousand, nine hundred five".