72700229 has 16 divisors (see below), whose sum is σ = 85641600. Its totient is φ = 60419520.

The previous prime is 72700207. The next prime is 72700249. The reversal of 72700229 is 92200727.

It is not a de Polignac number, because 72700229 - 2²⁰ = 71651653 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72700249) 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 15 ways as a sum of consecutive naturals, for example, 44039 + ... + 45659.

It is an arithmetic number, because the mean of its divisors is an integer number (5352600).

Almost surely, 2^72700229 is an apocalyptic number.

It is an amenable number.

72700229 is a deficient number, since it is larger than the sum of its proper divisors (12941371).

72700229 is a wasteful number, since it uses less digits than its factorization.

72700229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1820.

The product of its (nonzero) digits is 3528, while the sum is 29.

The square root of 72700229 is about 8526.4429277396. The cubic root of 72700229 is about 417.3610595793.

The spelling of 72700229 in words is "seventy-two million, seven hundred thousand, two hundred twenty-nine".