72433037 has 2 divisors, whose sum is σ = 72433038. Its totient is φ = 72433036.

The previous prime is 72432991. The next prime is 72433043. The reversal of 72433037 is 73033427.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 42172036 + 30261001 = 6494^2 + 5501^2 .

It is a cyclic number.

It is not a de Polignac number, because 72433037 - 2⁶ = 72432973 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72433057) 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, 36216518 + 36216519.

It is an arithmetic number, because the mean of its divisors is an integer number (36216519).

Almost surely, 2^72433037 is an apocalyptic number.

It is an amenable number.

72433037 is a deficient number, since it is larger than the sum of its proper divisors (1).

72433037 is an equidigital number, since it uses as much as digits as its factorization.

72433037 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10584, while the sum is 29.

The square root of 72433037 is about 8510.7600718150. The cubic root of 72433037 is about 416.8491289042.

The spelling of 72433037 in words is "seventy-two million, four hundred thirty-three thousand, thirty-seven".