71830433 has 2 divisors, whose sum is σ = 71830434. Its totient is φ = 71830432.

The previous prime is 71830417. The next prime is 71830453. The reversal of 71830433 is 33403817.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 67782289 + 4048144 = 8233^2 + 2012^2 .

It is a cyclic number.

It is not a de Polignac number, because 71830433 - 2⁴ = 71830417 is a prime.

It is a super-2 number, since 2×71830433² = 10319222209934978, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 71830396 and 71830405.

It is not a weakly prime, because it can be changed into another prime (71830453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35915216 + 35915217.

It is an arithmetic number, because the mean of its divisors is an integer number (35915217).

Almost surely, 2^71830433 is an apocalyptic number.

It is an amenable number.

71830433 is a deficient number, since it is larger than the sum of its proper divisors (1).

71830433 is an equidigital number, since it uses as much as digits as its factorization.

71830433 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6048, while the sum is 29.

The square root of 71830433 is about 8475.2836530703. The cubic root of 71830433 is about 415.6899212511.

The spelling of 71830433 in words is "seventy-one million, eight hundred thirty thousand, four hundred thirty-three".