472989121 has 12 divisors (see below), whose sum is σ = 531993616. Its totient is φ = 419985720.

The previous prime is 472989091. The next prime is 472989133. The reversal of 472989121 is 121989274.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-472989121 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is not an unprimeable number, because it can be changed into a prime (472989151) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 40251 + ... + 50656.

Almost surely, 2^472989121 is an apocalyptic number.

It is an amenable number.

472989121 is a deficient number, since it is larger than the sum of its proper divisors (59004495).

472989121 is a wasteful number, since it uses less digits than its factorization.

472989121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90972 (or 90961 counting only the distinct ones).

The product of its digits is 72576, while the sum is 43.

The square root of 472989121 is about 21748.3130610169. The cubic root of 472989121 is about 779.1427800443.

The spelling of 472989121 in words is "four hundred seventy-two million, nine hundred eighty-nine thousand, one hundred twenty-one".