472645649 has 8 divisors (see below), whose sum is σ = 540321600. Its totient is φ = 405008496.

The previous prime is 472645631. The next prime is 472645661. The reversal of 472645649 is 946546274.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 472645649 - 2¹² = 472641553 is a prime.

It is not an unprimeable number, because it can be changed into a prime (472641649) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24422 + ... + 39264.

It is an arithmetic number, because the mean of its divisors is an integer number (67540200).

Almost surely, 2^472645649 is an apocalyptic number.

It is an amenable number.

472645649 is a deficient number, since it is larger than the sum of its proper divisors (67675951).

472645649 is a wasteful number, since it uses less digits than its factorization.

472645649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19399.

The product of its digits is 1451520, while the sum is 47.

The square root of 472645649 is about 21740.4151064325. The cubic root of 472645649 is about 778.9541368521.

The spelling of 472645649 in words is "four hundred seventy-two million, six hundred forty-five thousand, six hundred forty-nine".