72249467 has 2 divisors, whose sum is σ = 72249468. Its totient is φ = 72249466.

The previous prime is 72249433. The next prime is 72249479. The reversal of 72249467 is 76494227.

It is a strong prime.

It is an emirp because it is prime and its reverse (76494227) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 72249467 - 2⁶ = 72249403 is a prime.

It is not a weakly prime, because it can be changed into another prime (72249367) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36124733 + 36124734.

It is an arithmetic number, because the mean of its divisors is an integer number (36124734).

Almost surely, 2^72249467 is an apocalyptic number.

72249467 is a deficient number, since it is larger than the sum of its proper divisors (1).

72249467 is an equidigital number, since it uses as much as digits as its factorization.

72249467 is an evil number, because the sum of its binary digits is even.

The product of its digits is 169344, while the sum is 41.

The square root of 72249467 is about 8499.9686470010. The cubic root of 72249467 is about 416.4966850822.

The spelling of 72249467 in words is "seventy-two million, two hundred forty-nine thousand, four hundred sixty-seven".