72503223 has 8 divisors (see below), whose sum is σ = 104107248. Its totient is φ = 44617344.

The previous prime is 72503177. The next prime is 72503231. The reversal of 72503223 is 32230527.

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

It is not a de Polignac number, because 72503223 - 2⁶ = 72503159 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 72503193 and 72503202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72503323) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 929490 + ... + 929567.

It is an arithmetic number, because the mean of its divisors is an integer number (13013406).

Almost surely, 2^72503223 is an apocalyptic number.

72503223 is a deficient number, since it is larger than the sum of its proper divisors (31604025).

72503223 is a wasteful number, since it uses less digits than its factorization.

72503223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1859073.

The product of its (nonzero) digits is 2520, while the sum is 24.

The square root of 72503223 is about 8514.8824419366. The cubic root of 72503223 is about 416.9837246148.

The spelling of 72503223 in words is "seventy-two million, five hundred three thousand, two hundred twenty-three".