71956433 has 2 divisors, whose sum is σ = 71956434. Its totient is φ = 71956432.

The previous prime is 71956387. The next prime is 71956499. The reversal of 71956433 is 33465917.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 52171729 + 19784704 = 7223^2 + 4448^2 .

It is a cyclic number.

It is not a de Polignac number, because 71956433 - 2¹² = 71952337 is a prime.

It is not a weakly prime, because it can be changed into another prime (71956133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35978216 + 35978217.

It is an arithmetic number, because the mean of its divisors is an integer number (35978217).

Almost surely, 2^71956433 is an apocalyptic number.

It is an amenable number.

71956433 is a deficient number, since it is larger than the sum of its proper divisors (1).

71956433 is an equidigital number, since it uses as much as digits as its factorization.

71956433 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 68040, while the sum is 38.

The square root of 71956433 is about 8482.7137756734. The cubic root of 71956433 is about 415.9328374839.

The spelling of 71956433 in words is "seventy-one million, nine hundred fifty-six thousand, four hundred thirty-three".