72283691 has 2 divisors, whose sum is σ = 72283692. Its totient is φ = 72283690.

The previous prime is 72283667. The next prime is 72283699. The reversal of 72283691 is 19638227.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 72283691 - 2²² = 68089387 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (72283699) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36141845 + 36141846.

It is an arithmetic number, because the mean of its divisors is an integer number (36141846).

Almost surely, 2^72283691 is an apocalyptic number.

72283691 is a deficient number, since it is larger than the sum of its proper divisors (1).

72283691 is an equidigital number, since it uses as much as digits as its factorization.

72283691 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 36288, while the sum is 38.

The square root of 72283691 is about 8501.9815925465. The cubic root of 72283691 is about 416.5624384275.

The spelling of 72283691 in words is "seventy-two million, two hundred eighty-three thousand, six hundred ninety-one".