68332919 has 2 divisors, whose sum is σ = 68332920. Its totient is φ = 68332918.

The previous prime is 68332889. The next prime is 68332933. The reversal of 68332919 is 91923386.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68332919 is a prime.

It is a super-2 number, since 2×68332919² = 9338775638121122, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68332939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34166459 + 34166460.

It is an arithmetic number, because the mean of its divisors is an integer number (34166460).

Almost surely, 2^68332919 is an apocalyptic number.

68332919 is a deficient number, since it is larger than the sum of its proper divisors (1).

68332919 is an equidigital number, since it uses as much as digits as its factorization.

68332919 is an evil number, because the sum of its binary digits is even.

The product of its digits is 69984, while the sum is 41.

The square root of 68332919 is about 8266.3727837547. The cubic root of 68332919 is about 408.8305341851.

The spelling of 68332919 in words is "sixty-eight million, three hundred thirty-two thousand, nine hundred nineteen".