73673231 has 4 divisors (see below), whose sum is σ = 73695264. Its totient is φ = 73651200.

The previous prime is 73673227. The next prime is 73673239. The reversal of 73673231 is 13237637.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 73673231 - 2² = 73673227 is a prime.

It is a super-2 number, since 2×73673231² = 10855489931958722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73673239) 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 3 ways as a sum of consecutive naturals, for example, 4850 + ... + 13071.

It is an arithmetic number, because the mean of its divisors is an integer number (18423816).

Almost surely, 2^73673231 is an apocalyptic number.

73673231 is a deficient number, since it is larger than the sum of its proper divisors (22033).

73673231 is a wasteful number, since it uses less digits than its factorization.

73673231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22032.

The product of its digits is 15876, while the sum is 32.

The square root of 73673231 is about 8583.3111909100. The cubic root of 73673231 is about 419.2147667786.

The spelling of 73673231 in words is "seventy-three million, six hundred seventy-three thousand, two hundred thirty-one".