73028231 has 2 divisors, whose sum is σ = 73028232. Its totient is φ = 73028230.

The previous prime is 73028213. The next prime is 73028299. The reversal of 73028231 is 13282037.

Together with previous prime (73028213) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 73028231 - 2⁶ = 73028167 is a prime.

It is a super-2 number, since 2×73028231² = 10666245045978722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 73028231.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (73028201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36514115 + 36514116.

It is an arithmetic number, because the mean of its divisors is an integer number (36514116).

Almost surely, 2^73028231 is an apocalyptic number.

73028231 is a deficient number, since it is larger than the sum of its proper divisors (1).

73028231 is an equidigital number, since it uses as much as digits as its factorization.

73028231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 73028231 is about 8545.6556799347. The cubic root of 73028231 is about 417.9877880028.

The spelling of 73028231 in words is "seventy-three million, twenty-eight thousand, two hundred thirty-one".