73431223 has 8 divisors (see below), whose sum is σ = 75186000. Its totient is φ = 71693568.

The previous prime is 73431209. The next prime is 73431233. The reversal of 73431223 is 32213437.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 73431223 - 2⁵ = 73431191 is a prime.

It is a super-2 number, since 2×73431223² = 10784289022551458, 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 (73431233) 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, 4615 + ... + 12967.

It is an arithmetic number, because the mean of its divisors is an integer number (9398250).

Almost surely, 2^73431223 is an apocalyptic number.

73431223 is a deficient number, since it is larger than the sum of its proper divisors (1754777).

73431223 is a wasteful number, since it uses less digits than its factorization.

73431223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8561.

The product of its digits is 3024, while the sum is 25.

The square root of 73431223 is about 8569.2020048544. The cubic root of 73431223 is about 418.7552393196.

The spelling of 73431223 in words is "seventy-three million, four hundred thirty-one thousand, two hundred twenty-three".