47624121 has 6 divisors (see below), whose sum is σ = 68790410. Its totient is φ = 31749408.

The previous prime is 47624117. The next prime is 47624179. The reversal of 47624121 is 12142674.

It can be written as a sum of positive squares in only one way, i.e., 37454400 + 10169721 = 6120^2 + 3189^2 .

It is not a de Polignac number, because 47624121 - 2² = 47624117 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47624221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2645776 + ... + 2645793.

Almost surely, 2^47624121 is an apocalyptic number.

It is an amenable number.

47624121 is a deficient number, since it is larger than the sum of its proper divisors (21166289).

47624121 is a wasteful number, since it uses less digits than its factorization.

47624121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5291575 (or 5291572 counting only the distinct ones).

The product of its digits is 2688, while the sum is 27.

The square root of 47624121 is about 6901.0231850067. The cubic root of 47624121 is about 362.4729961652.

Adding to 47624121 its reverse (12142674), we get a palindrome (59766795).

The spelling of 47624121 in words is "forty-seven million, six hundred twenty-four thousand, one hundred twenty-one".