72237443 has 2 divisors, whose sum is σ = 72237444. Its totient is φ = 72237442.

The previous prime is 72237433. The next prime is 72237467. The reversal of 72237443 is 34473227.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 72237443 - 2¹² = 72233347 is a prime.

It is not a weakly prime, because it can be changed into another prime (72237433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36118721 + 36118722.

It is an arithmetic number, because the mean of its divisors is an integer number (36118722).

Almost surely, 2^72237443 is an apocalyptic number.

72237443 is a deficient number, since it is larger than the sum of its proper divisors (1).

72237443 is an equidigital number, since it uses as much as digits as its factorization.

72237443 is an evil number, because the sum of its binary digits is even.

The product of its digits is 28224, while the sum is 32.

The square root of 72237443 is about 8499.2613208443. The cubic root of 72237443 is about 416.4735788726.

The spelling of 72237443 in words is "seventy-two million, two hundred thirty-seven thousand, four hundred forty-three".