72347467 has 2 divisors, whose sum is σ = 72347468. Its totient is φ = 72347466.

The previous prime is 72347441. The next prime is 72347479. The reversal of 72347467 is 76474327.

It is a strong prime.

It is an emirp because it is prime and its reverse (76474327) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-72347467 is a prime.

It is not a weakly prime, because it can be changed into another prime (72347417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36173733 + 36173734.

It is an arithmetic number, because the mean of its divisors is an integer number (36173734).

Almost surely, 2^72347467 is an apocalyptic number.

72347467 is a deficient number, since it is larger than the sum of its proper divisors (1).

72347467 is an equidigital number, since it uses as much as digits as its factorization.

72347467 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 197568, while the sum is 40.

The square root of 72347467 is about 8505.7314206363. The cubic root of 72347467 is about 416.6849136187.

The spelling of 72347467 in words is "seventy-two million, three hundred forty-seven thousand, four hundred sixty-seven".