68764379 has 2 divisors, whose sum is σ = 68764380. Its totient is φ = 68764378.

The previous prime is 68764369. The next prime is 68764387. The reversal of 68764379 is 97346786.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 68764379 - 2⁸ = 68764123 is a prime.

It is not a weakly prime, because it can be changed into another prime (68764309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34382189 + 34382190.

It is an arithmetic number, because the mean of its divisors is an integer number (34382190).

Almost surely, 2^68764379 is an apocalyptic number.

68764379 is a deficient number, since it is larger than the sum of its proper divisors (1).

68764379 is an equidigital number, since it uses as much as digits as its factorization.

68764379 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1524096, while the sum is 50.

The square root of 68764379 is about 8292.4290168804. The cubic root of 68764379 is about 409.6891933593.

The spelling of 68764379 in words is "sixty-eight million, seven hundred sixty-four thousand, three hundred seventy-nine".