72870219 has 16 divisors (see below), whose sum is σ = 108106240. Its totient is φ = 48512520.

The previous prime is 72870167. The next prime is 72870221. The reversal of 72870219 is 91207827.

It is not a de Polignac number, because 72870219 - 2⁹ = 72869707 is a prime.

It is a super-2 number, since 2×72870219² = 10620137634215922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72870269) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24714 + ... + 27504.

It is an arithmetic number, because the mean of its divisors is an integer number (6756640).

Almost surely, 2^72870219 is an apocalyptic number.

72870219 is a deficient number, since it is larger than the sum of its proper divisors (35236021).

72870219 is a wasteful number, since it uses less digits than its factorization.

72870219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3767 (or 3761 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 36.

The square root of 72870219 is about 8536.4055081750. The cubic root of 72870219 is about 417.6861020273.

The spelling of 72870219 in words is "seventy-two million, eight hundred seventy thousand, two hundred nineteen".