71758223 has 2 divisors, whose sum is σ = 71758224. Its totient is φ = 71758222.

The previous prime is 71758217. The next prime is 71758243. The reversal of 71758223 is 32285717.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 71758223 - 2¹⁰ = 71757199 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (71758243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35879111 + 35879112.

It is an arithmetic number, because the mean of its divisors is an integer number (35879112).

Almost surely, 2^71758223 is an apocalyptic number.

71758223 is a deficient number, since it is larger than the sum of its proper divisors (1).

71758223 is an equidigital number, since it uses as much as digits as its factorization.

71758223 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23520, while the sum is 35.

The square root of 71758223 is about 8471.0225474850. The cubic root of 71758223 is about 415.5505790433.

The spelling of 71758223 in words is "seventy-one million, seven hundred fifty-eight thousand, two hundred twenty-three".