72215467 has 2 divisors, whose sum is σ = 72215468. Its totient is φ = 72215466.

The previous prime is 72215459. The next prime is 72215489. The reversal of 72215467 is 76451227.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 72215467 - 2³ = 72215459 is a prime.

It is not a weakly prime, because it can be changed into another prime (72215497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36107733 + 36107734.

It is an arithmetic number, because the mean of its divisors is an integer number (36107734).

Almost surely, 2^72215467 is an apocalyptic number.

72215467 is a deficient number, since it is larger than the sum of its proper divisors (1).

72215467 is an equidigital number, since it uses as much as digits as its factorization.

72215467 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23520, while the sum is 34.

The square root of 72215467 is about 8497.9684042717. The cubic root of 72215467 is about 416.4313415358.

The spelling of 72215467 in words is "seventy-two million, two hundred fifteen thousand, four hundred sixty-seven".