68263907 has 4 divisors (see below), whose sum is σ = 68617800. Its totient is φ = 67910016.

The previous prime is 68263901. The next prime is 68263913. The reversal of 68263907 is 70936286.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 70936286 = 2 ⋅35468143.

It is an interprime number because it is at equal distance from previous prime (68263901) and next prime (68263913).

It is a cyclic number.

It is not a de Polignac number, because 68263907 - 2⁶ = 68263843 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68263901) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 176657 + ... + 177042.

It is an arithmetic number, because the mean of its divisors is an integer number (17154450).

Almost surely, 2^68263907 is an apocalyptic number.

68263907 is a deficient number, since it is larger than the sum of its proper divisors (353893).

68263907 is a wasteful number, since it uses less digits than its factorization.

68263907 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 353892.

The product of its (nonzero) digits is 108864, while the sum is 41.

The square root of 68263907 is about 8262.1974679863. The cubic root of 68263907 is about 408.6928566852.

The spelling of 68263907 in words is "sixty-eight million, two hundred sixty-three thousand, nine hundred seven".