72233429 has 2 divisors, whose sum is σ = 72233430. Its totient is φ = 72233428.

The previous prime is 72233423. The next prime is 72233467. The reversal of 72233429 is 92433227.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 57410929 + 14822500 = 7577^2 + 3850^2 .

It is a cyclic number.

It is not a de Polignac number, because 72233429 - 2²⁴ = 55456213 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 72233395 and 72233404.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72233423) 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, 36116714 + 36116715.

It is an arithmetic number, because the mean of its divisors is an integer number (36116715).

Almost surely, 2^72233429 is an apocalyptic number.

It is an amenable number.

72233429 is a deficient number, since it is larger than the sum of its proper divisors (1).

72233429 is an equidigital number, since it uses as much as digits as its factorization.

72233429 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18144, while the sum is 32.

The square root of 72233429 is about 8499.0251793956. The cubic root of 72233429 is about 416.4658647019.

The spelling of 72233429 in words is "seventy-two million, two hundred thirty-three thousand, four hundred twenty-nine".