72000215 has 16 divisors (see below), whose sum is σ = 103941120. Its totient is φ = 46772640.

The previous prime is 72000209. The next prime is 72000217. The reversal of 72000215 is 51200027.

It is not a de Polignac number, because 72000215 - 2¹⁶ = 71934679 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 72000193 and 72000202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72000217) 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 15 ways as a sum of consecutive naturals, for example, 53471 + ... + 54800.

It is an arithmetic number, because the mean of its divisors is an integer number (6496320).

Almost surely, 2^72000215 is an apocalyptic number.

72000215 is a deficient number, since it is larger than the sum of its proper divisors (31940905).

72000215 is a wasteful number, since it uses less digits than its factorization.

72000215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108302.

The product of its (nonzero) digits is 140, while the sum is 17.

The square root of 72000215 is about 8485.2940432256. The cubic root of 72000215 is about 416.0171787007.

The spelling of 72000215 in words is "seventy-two million, two hundred fifteen", and thus it is an aban number.