72413227 has 4 divisors (see below), whose sum is σ = 72732456. Its totient is φ = 72094000.

The previous prime is 72413221. The next prime is 72413233. The reversal of 72413227 is 72231427.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 72231427 = 67 ⋅1078081.

It is an interprime number because it is at equal distance from previous prime (72413221) and next prime (72413233).

It is a cyclic number.

It is not a de Polignac number, because 72413227 - 2¹⁵ = 72380459 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 72413195 and 72413204.

It is not an unprimeable number, because it can be changed into a prime (72413221) 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, 159274 + ... + 159727.

It is an arithmetic number, because the mean of its divisors is an integer number (18183114).

Almost surely, 2^72413227 is an apocalyptic number.

72413227 is a deficient number, since it is larger than the sum of its proper divisors (319229).

72413227 is a wasteful number, since it uses less digits than its factorization.

72413227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 319228.

The product of its digits is 4704, while the sum is 28.

The square root of 72413227 is about 8509.5961713820. The cubic root of 72413227 is about 416.8111235293.

The spelling of 72413227 in words is "seventy-two million, four hundred thirteen thousand, two hundred twenty-seven".