72213207 has 8 divisors (see below), whose sum is σ = 105037440. Its totient is φ = 43765560.

The previous prime is 72213199. The next prime is 72213217. The reversal of 72213207 is 70231227.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 72213207 - 2³ = 72213199 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72213217) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1094107 + ... + 1094172.

It is an arithmetic number, because the mean of its divisors is an integer number (13129680).

Almost surely, 2^72213207 is an apocalyptic number.

72213207 is a deficient number, since it is larger than the sum of its proper divisors (32824233).

72213207 is a wasteful number, since it uses less digits than its factorization.

72213207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2188293.

The product of its (nonzero) digits is 1176, while the sum is 24.

The square root of 72213207 is about 8497.8354302728. The cubic root of 72213207 is about 416.4269973849.

The spelling of 72213207 in words is "seventy-two million, two hundred thirteen thousand, two hundred seven".