72227671 has 2 divisors, whose sum is σ = 72227672. Its totient is φ = 72227670.

The previous prime is 72227669. The next prime is 72227689. The reversal of 72227671 is 17672227.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 72227671 - 2¹ = 72227669 is a prime.

Together with 72227669, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72227171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36113835 + 36113836.

It is an arithmetic number, because the mean of its divisors is an integer number (36113836).

Almost surely, 2^72227671 is an apocalyptic number.

72227671 is a deficient number, since it is larger than the sum of its proper divisors (1).

72227671 is an equidigital number, since it uses as much as digits as its factorization.

72227671 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16464, while the sum is 34.

The square root of 72227671 is about 8498.6864279134. The cubic root of 72227671 is about 416.4547983844.

Adding to 72227671 its reverse (17672227), we get a palindrome (89899898).

The spelling of 72227671 in words is "seventy-two million, two hundred twenty-seven thousand, six hundred seventy-one".