72203207 has 2 divisors, whose sum is σ = 72203208. Its totient is φ = 72203206.

The previous prime is 72203179. The next prime is 72203221. The reversal of 72203207 is 70230227.

It is a strong prime.

It is an emirp because it is prime and its reverse (70230227) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 72203207 - 2¹⁴ = 72186823 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72203507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36101603 + 36101604.

It is an arithmetic number, because the mean of its divisors is an integer number (36101604).

Almost surely, 2^72203207 is an apocalyptic number.

72203207 is a deficient number, since it is larger than the sum of its proper divisors (1).

72203207 is an equidigital number, since it uses as much as digits as its factorization.

72203207 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1176, while the sum is 23.

The square root of 72203207 is about 8497.2470247722. The cubic root of 72203207 is about 416.4077743906.

The spelling of 72203207 in words is "seventy-two million, two hundred three thousand, two hundred seven".