72083237 has 2 divisors, whose sum is σ = 72083238. Its totient is φ = 72083236.

The previous prime is 72083203. The next prime is 72083239. The reversal of 72083237 is 73238027.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 67092481 + 4990756 = 8191^2 + 2234^2 .

It is a cyclic number.

It is not a de Polignac number, because 72083237 - 2²⁰ = 71034661 is a prime.

Together with 72083239, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72083239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36041618 + 36041619.

It is an arithmetic number, because the mean of its divisors is an integer number (36041619).

Almost surely, 2^72083237 is an apocalyptic number.

It is an amenable number.

72083237 is a deficient number, since it is larger than the sum of its proper divisors (1).

72083237 is an equidigital number, since it uses as much as digits as its factorization.

72083237 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14112, while the sum is 32.

The square root of 72083237 is about 8490.1847447508. The cubic root of 72083237 is about 416.1770176283.

The spelling of 72083237 in words is "seventy-two million, eighty-three thousand, two hundred thirty-seven".