68492387 has 2 divisors, whose sum is σ = 68492388. Its totient is φ = 68492386.

The previous prime is 68492339. The next prime is 68492393. The reversal of 68492387 is 78329486.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 68492387 - 2¹⁰ = 68491363 is a prime.

It is not a weakly prime, because it can be changed into another prime (68492317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34246193 + 34246194.

It is an arithmetic number, because the mean of its divisors is an integer number (34246194).

Almost surely, 2^68492387 is an apocalyptic number.

68492387 is a deficient number, since it is larger than the sum of its proper divisors (1).

68492387 is an equidigital number, since it uses as much as digits as its factorization.

68492387 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 580608, while the sum is 47.

The square root of 68492387 is about 8276.0127476944. The cubic root of 68492387 is about 409.1483153215.

The spelling of 68492387 in words is "sixty-eight million, four hundred ninety-two thousand, three hundred eighty-seven".