68397223 has 2 divisors, whose sum is σ = 68397224. Its totient is φ = 68397222.

The previous prime is 68397163. The next prime is 68397227. The reversal of 68397223 is 32279386.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 68397223 - 2⁹ = 68396711 is a prime.

It is a super-2 number, since 2×68397223² = 9356360228223458, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68397227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34198611 + 34198612.

It is an arithmetic number, because the mean of its divisors is an integer number (34198612).

Almost surely, 2^68397223 is an apocalyptic number.

68397223 is a deficient number, since it is larger than the sum of its proper divisors (1).

68397223 is an equidigital number, since it uses as much as digits as its factorization.

68397223 is an evil number, because the sum of its binary digits is even.

The product of its digits is 108864, while the sum is 40.

The square root of 68397223 is about 8270.2613622545. The cubic root of 68397223 is about 408.9587359211.

The spelling of 68397223 in words is "sixty-eight million, three hundred ninety-seven thousand, two hundred twenty-three".