72234417 has 4 divisors (see below), whose sum is σ = 96312560. Its totient is φ = 48156276.

The previous prime is 72234403. The next prime is 72234419. The reversal of 72234417 is 71443227.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 71443227 = 3 ⋅23814409.

It is not a de Polignac number, because 72234417 - 2⁴ = 72234401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72234419) 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 3 ways as a sum of consecutive naturals, for example, 12039067 + ... + 12039072.

It is an arithmetic number, because the mean of its divisors is an integer number (24078140).

Almost surely, 2^72234417 is an apocalyptic number.

It is an amenable number.

72234417 is a deficient number, since it is larger than the sum of its proper divisors (24078143).

72234417 is a wasteful number, since it uses less digits than its factorization.

72234417 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24078142.

The product of its digits is 9408, while the sum is 30.

The square root of 72234417 is about 8499.0833035099. The cubic root of 72234417 is about 416.4677634829.

The spelling of 72234417 in words is "seventy-two million, two hundred thirty-four thousand, four hundred seventeen".