72370219 has 2 divisors, whose sum is σ = 72370220. Its totient is φ = 72370218.

The previous prime is 72370147. The next prime is 72370267. The reversal of 72370219 is 91207327.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 72370219 - 2¹³ = 72362027 is a prime.

It is a super-2 number, since 2×72370219² = 10474897196215922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (72370019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36185109 + 36185110.

It is an arithmetic number, because the mean of its divisors is an integer number (36185110).

Almost surely, 2^72370219 is an apocalyptic number.

72370219 is a deficient number, since it is larger than the sum of its proper divisors (1).

72370219 is an equidigital number, since it uses as much as digits as its factorization.

72370219 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5292, while the sum is 31.

The square root of 72370219 is about 8507.0687666199. The cubic root of 72370219 is about 416.7285890548.

The spelling of 72370219 in words is "seventy-two million, three hundred seventy thousand, two hundred nineteen".