68824919 has 2 divisors, whose sum is σ = 68824920. Its totient is φ = 68824918.

The previous prime is 68824883. The next prime is 68824939. The reversal of 68824919 is 91942886.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 68824919 - 2⁸ = 68824663 is a prime.

It is a super-2 number, since 2×68824919² = 9473738950713122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68824939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34412459 + 34412460.

It is an arithmetic number, because the mean of its divisors is an integer number (34412460).

Almost surely, 2^68824919 is an apocalyptic number.

68824919 is a deficient number, since it is larger than the sum of its proper divisors (1).

68824919 is an equidigital number, since it uses as much as digits as its factorization.

68824919 is an evil number, because the sum of its binary digits is even.

The product of its digits is 248832, while the sum is 47.

The square root of 68824919 is about 8296.0785314509. The cubic root of 68824919 is about 409.8093878988.

The spelling of 68824919 in words is "sixty-eight million, eight hundred twenty-four thousand, nine hundred nineteen".