71696993 has 2 divisors, whose sum is σ = 71696994. Its totient is φ = 71696992.

The previous prime is 71696983. The next prime is 71697011. The reversal of 71696993 is 39969617.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 69689104 + 2007889 = 8348^2 + 1417^2 .

It is a cyclic number.

It is not a de Polignac number, because 71696993 - 2¹⁶ = 71631457 is a prime.

It is not a weakly prime, because it can be changed into another prime (71696983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35848496 + 35848497.

It is an arithmetic number, because the mean of its divisors is an integer number (35848497).

Almost surely, 2^71696993 is an apocalyptic number.

It is an amenable number.

71696993 is a deficient number, since it is larger than the sum of its proper divisors (1).

71696993 is an equidigital number, since it uses as much as digits as its factorization.

71696993 is an evil number, because the sum of its binary digits is even.

The product of its digits is 551124, while the sum is 50.

The square root of 71696993 is about 8467.4076906690. The cubic root of 71696993 is about 415.4323514667.

The spelling of 71696993 in words is "seventy-one million, six hundred ninety-six thousand, nine hundred ninety-three".