65719223 has 2 divisors, whose sum is σ = 65719224. Its totient is φ = 65719222.

The previous prime is 65719219. The next prime is 65719237. The reversal of 65719223 is 32291756.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 65719223 - 2² = 65719219 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65710223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32859611 + 32859612.

It is an arithmetic number, because the mean of its divisors is an integer number (32859612).

Almost surely, 2^65719223 is an apocalyptic number.

65719223 is a deficient number, since it is larger than the sum of its proper divisors (1).

65719223 is an equidigital number, since it uses as much as digits as its factorization.

65719223 is an evil number, because the sum of its binary digits is even.

The product of its digits is 22680, while the sum is 35.

The square root of 65719223 is about 8106.7393568561. The cubic root of 65719223 is about 403.5501131107.

The spelling of 65719223 in words is "sixty-five million, seven hundred nineteen thousand, two hundred twenty-three".