47621123 has 12 divisors (see below), whose sum is σ = 52865904. Its totient is φ = 42860400.

The previous prime is 47621113. The next prime is 47621137. The reversal of 47621123 is 32112674.

It is a de Polignac number, because none of the positive numbers 2^k-47621123 is a prime.

It is a super-2 number, since 2×47621123² = 4535542711562258, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 47621092 and 47621101.

It is not an unprimeable number, because it can be changed into a prime (47621113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10553 + ... + 14373.

It is an arithmetic number, because the mean of its divisors is an integer number (4405492).

Almost surely, 2^47621123 is an apocalyptic number.

47621123 is a deficient number, since it is larger than the sum of its proper divisors (5244781).

47621123 is a wasteful number, since it uses less digits than its factorization.

47621123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3946 (or 3935 counting only the distinct ones).

The product of its digits is 2016, while the sum is 26.

The square root of 47621123 is about 6900.8059674215. The cubic root of 47621123 is about 362.4653899577.

Adding to 47621123 its reverse (32112674), we get a palindrome (79733797).

It can be divided in two parts, 4762 and 1123, that added together give a palindrome (5885).

The spelling of 47621123 in words is "forty-seven million, six hundred twenty-one thousand, one hundred twenty-three".