72244207 has 4 divisors (see below), whose sum is σ = 82564816. Its totient is φ = 61923600.

The previous prime is 72244201. The next prime is 72244241. The reversal of 72244207 is 70244227.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 70244227 = 1433 ⋅49019.

It is a cyclic number.

It is not a de Polignac number, because 72244207 - 2¹⁹ = 71719919 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72244201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5160294 + ... + 5160307.

It is an arithmetic number, because the mean of its divisors is an integer number (20641204).

Almost surely, 2^72244207 is an apocalyptic number.

72244207 is a deficient number, since it is larger than the sum of its proper divisors (10320609).

72244207 is a wasteful number, since it uses less digits than its factorization.

72244207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10320608.

The product of its (nonzero) digits is 6272, while the sum is 28.

The square root of 72244207 is about 8499.6592284632. The cubic root of 72244207 is about 416.4865773918.

The spelling of 72244207 in words is "seventy-two million, two hundred forty-four thousand, two hundred seven".