72432043 has 2 divisors, whose sum is σ = 72432044. Its totient is φ = 72432042.

The previous prime is 72432007. The next prime is 72432077. The reversal of 72432043 is 34023427.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 72432043 - 2¹⁷ = 72300971 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 72431999 and 72432017.

It is not a weakly prime, because it can be changed into another prime (72433043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36216021 + 36216022.

It is an arithmetic number, because the mean of its divisors is an integer number (36216022).

Almost surely, 2^72432043 is an apocalyptic number.

72432043 is a deficient number, since it is larger than the sum of its proper divisors (1).

72432043 is an equidigital number, since it uses as much as digits as its factorization.

72432043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4032, while the sum is 25.

The square root of 72432043 is about 8510.7016749502. The cubic root of 72432043 is about 416.8472220859.

It can be divided in two parts, 724 and 32043, that multiplied together give a palindrome (23199132).

The spelling of 72432043 in words is "seventy-two million, four hundred thirty-two thousand, forty-three".