72851743 has 2 divisors, whose sum is σ = 72851744. Its totient is φ = 72851742.

The previous prime is 72851717. The next prime is 72851771. The reversal of 72851743 is 34715827.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 72851743 - 2⁹ = 72851231 is a prime.

It is equal to p_4275865 and since 72851743 and 4275865 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72851773) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36425871 + 36425872.

It is an arithmetic number, because the mean of its divisors is an integer number (36425872).

Almost surely, 2^72851743 is an apocalyptic number.

72851743 is a deficient number, since it is larger than the sum of its proper divisors (1).

72851743 is an equidigital number, since it uses as much as digits as its factorization.

72851743 is an evil number, because the sum of its binary digits is even.

The product of its digits is 47040, while the sum is 37.

The square root of 72851743 is about 8535.3232510550. The cubic root of 72851743 is about 417.6507980726.

The spelling of 72851743 in words is "seventy-two million, eight hundred fifty-one thousand, seven hundred forty-three".