72367643 has 2 divisors, whose sum is σ = 72367644. Its totient is φ = 72367642.

The previous prime is 72367621. The next prime is 72367663. The reversal of 72367643 is 34676327.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 72367643 - 2⁸ = 72367387 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 72367597 and 72367606.

It is not a weakly prime, because it can be changed into another prime (72367663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36183821 + 36183822.

It is an arithmetic number, because the mean of its divisors is an integer number (36183822).

Almost surely, 2^72367643 is an apocalyptic number.

72367643 is a deficient number, since it is larger than the sum of its proper divisors (1).

72367643 is an equidigital number, since it uses as much as digits as its factorization.

72367643 is an evil number, because the sum of its binary digits is even.

The product of its digits is 127008, while the sum is 38.

The square root of 72367643 is about 8506.9173617709. The cubic root of 72367643 is about 416.7236445459.

The spelling of 72367643 in words is "seventy-two million, three hundred sixty-seven thousand, six hundred forty-three".