73641123 has 8 divisors (see below), whose sum is σ = 109098000. Its totient is φ = 49094064.

The previous prime is 73641109. The next prime is 73641143. The reversal of 73641123 is 32114637.

73641123 is a `hidden beast` number, since 7 + 3 + 641 + 12 + 3 = 666.

It is not a de Polignac number, because 73641123 - 2¹⁶ = 73575587 is a prime.

It is a super-2 number, since 2×73641123² = 10846029993402258, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 2727449 = 73641123 / (7 + 3 + 6 + 4 + 1 + 1 + 2 + 3).

It is not an unprimeable number, because it can be changed into a prime (73641103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1363698 + ... + 1363751.

It is an arithmetic number, because the mean of its divisors is an integer number (13637250).

Almost surely, 2^73641123 is an apocalyptic number.

73641123 is a deficient number, since it is larger than the sum of its proper divisors (35456877).

73641123 is a wasteful number, since it uses less digits than its factorization.

73641123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2727458 (or 2727452 counting only the distinct ones).

The product of its digits is 3024, while the sum is 27.

The square root of 73641123 is about 8581.4406133236. The cubic root of 73641123 is about 419.1538577103.

The spelling of 73641123 in words is "seventy-three million, six hundred forty-one thousand, one hundred twenty-three".