72030223 has 4 divisors (see below), whose sum is σ = 72317448. Its totient is φ = 71743000.

The previous prime is 72030221. The next prime is 72030247. The reversal of 72030223 is 32203027.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32203027 = 431 ⋅74717.

It is a cyclic number.

It is not a de Polignac number, because 72030223 - 2¹ = 72030221 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 72030223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72030221) 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, 143236 + ... + 143737.

It is an arithmetic number, because the mean of its divisors is an integer number (18079362).

Almost surely, 2^72030223 is an apocalyptic number.

72030223 is a deficient number, since it is larger than the sum of its proper divisors (287225).

72030223 is a wasteful number, since it uses less digits than its factorization.

72030223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 287224.

The product of its (nonzero) digits is 504, while the sum is 19.

The square root of 72030223 is about 8487.0620947416. The cubic root of 72030223 is about 416.0749660725.

The spelling of 72030223 in words is "seventy-two million, thirty thousand, two hundred twenty-three".