71427233 has 2 divisors, whose sum is σ = 71427234. Its totient is φ = 71427232.

The previous prime is 71427179. The next prime is 71427241. The reversal of 71427233 is 33272417.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 44729344 + 26697889 = 6688^2 + 5167^2 .

It is a cyclic number.

It is not a de Polignac number, because 71427233 - 2⁸ = 71426977 is a prime.

It is a super-3 number, since 3×71427233³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 71427196 and 71427205.

It is not a weakly prime, because it can be changed into another prime (71427253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35713616 + 35713617.

It is an arithmetic number, because the mean of its divisors is an integer number (35713617).

Almost surely, 2^71427233 is an apocalyptic number.

It is an amenable number.

71427233 is a deficient number, since it is larger than the sum of its proper divisors (1).

71427233 is an equidigital number, since it uses as much as digits as its factorization.

71427233 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7056, while the sum is 29.

The square root of 71427233 is about 8451.4633644121. The cubic root of 71427233 is about 414.9106751187.

The spelling of 71427233 in words is "seventy-one million, four hundred twenty-seven thousand, two hundred thirty-three".