472491747 has 48 divisors (see below), whose sum is σ = 842849280. Its totient is φ = 248377536.

The previous prime is 472491743. The next prime is 472491757. The reversal of 472491747 is 747194274.

472491747 is a `hidden beast` number, since 472 + 4 + 9 + 174 + 7 = 666.

It is not a de Polignac number, because 472491747 - 2² = 472491743 is a prime.

It is a super-2 number, since 2×472491747² = 446496901966224018, which contains 22 as substring.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (472491743) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 293218 + ... + 294824.

It is an arithmetic number, because the mean of its divisors is an integer number (17559360).

Almost surely, 2^472491747 is an apocalyptic number.

472491747 is a deficient number, since it is larger than the sum of its proper divisors (370357533).

472491747 is a wasteful number, since it uses less digits than its factorization.

472491747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1992 (or 1989 counting only the distinct ones).

The product of its digits is 395136, while the sum is 45.

The square root of 472491747 is about 21736.8752814198. The cubic root of 472491747 is about 778.8695804731.

The spelling of 472491747 in words is "four hundred seventy-two million, four hundred ninety-one thousand, seven hundred forty-seven".