72527229 has 6 divisors (see below), whose sum is σ = 104761566. Its totient is φ = 48351480.

The previous prime is 72527209. The next prime is 72527269. The reversal of 72527229 is 92272527.

It can be written as a sum of positive squares in only one way, i.e., 71014329 + 1512900 = 8427^2 + 1230^2 .

It is not a de Polignac number, because 72527229 - 2⁷ = 72527101 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 72527193 and 72527202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72527209) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4029282 + ... + 4029299.

It is an arithmetic number, because the mean of its divisors is an integer number (17460261).

Almost surely, 2^72527229 is an apocalyptic number.

It is an amenable number.

72527229 is a deficient number, since it is larger than the sum of its proper divisors (32234337).

72527229 is a wasteful number, since it uses less digits than its factorization.

72527229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8058587 (or 8058584 counting only the distinct ones).

The product of its digits is 35280, while the sum is 36.

The square root of 72527229 is about 8516.2919747975. The cubic root of 72527229 is about 417.0297409908.

The spelling of 72527229 in words is "seventy-two million, five hundred twenty-seven thousand, two hundred twenty-nine".