71433953 has 2 divisors, whose sum is σ = 71433954. Its totient is φ = 71433952.

The previous prime is 71433941. The next prime is 71433961. The reversal of 71433953 is 35933417.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 62837329 + 8596624 = 7927^2 + 2932^2 .

It is a cyclic number.

It is not a de Polignac number, because 71433953 - 2⁸ = 71433697 is a prime.

It is not a weakly prime, because it can be changed into another prime (71433053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35716976 + 35716977.

It is an arithmetic number, because the mean of its divisors is an integer number (35716977).

Almost surely, 2^71433953 is an apocalyptic number.

It is an amenable number.

71433953 is a deficient number, since it is larger than the sum of its proper divisors (1).

71433953 is an equidigital number, since it uses as much as digits as its factorization.

71433953 is an evil number, because the sum of its binary digits is even.

The product of its digits is 34020, while the sum is 35.

The square root of 71433953 is about 8451.8609193479. The cubic root of 71433953 is about 414.9236865532.

The spelling of 71433953 in words is "seventy-one million, four hundred thirty-three thousand, nine hundred fifty-three".