72227707 has 2 divisors, whose sum is σ = 72227708. Its totient is φ = 72227706.

The previous prime is 72227689. The next prime is 72227717. The reversal of 72227707 is 70772227.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-72227707 is a prime.

It is not a weakly prime, because it can be changed into another prime (72227717) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36113853 + 36113854.

It is an arithmetic number, because the mean of its divisors is an integer number (36113854).

Almost surely, 2^72227707 is an apocalyptic number.

72227707 is a deficient number, since it is larger than the sum of its proper divisors (1).

72227707 is an equidigital number, since it uses as much as digits as its factorization.

72227707 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 19208, while the sum is 34.

The square root of 72227707 is about 8498.6885458875. The cubic root of 72227707 is about 416.4548675748.

The spelling of 72227707 in words is "seventy-two million, two hundred twenty-seven thousand, seven hundred seven".