633472889 has 16 divisors (see below), whose sum is σ = 730187520. Its totient is φ = 538332480.

The previous prime is 633472871. The next prime is 633472913. The reversal of 633472889 is 988274336.

It is a de Polignac number, because none of the positive numbers 2^k-633472889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (633472859) 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, 763727 + ... + 764555.

It is an arithmetic number, because the mean of its divisors is an integer number (45636720).

Almost surely, 2^633472889 is an apocalyptic number.

It is an amenable number.

633472889 is a deficient number, since it is larger than the sum of its proper divisors (96714631).

633472889 is a wasteful number, since it uses less digits than its factorization.

633472889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1640.

The product of its digits is 1741824, while the sum is 50.

The square root of 633472889 is about 25168.8873214530. The cubic root of 633472889 is about 858.8342276453.

The spelling of 633472889 in words is "six hundred thirty-three million, four hundred seventy-two thousand, eight hundred eighty-nine".