68694863 has 2 divisors, whose sum is σ = 68694864. Its totient is φ = 68694862.

The previous prime is 68694833. The next prime is 68694877. The reversal of 68694863 is 36849686.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 68694863 - 2¹⁰ = 68693839 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68694833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34347431 + 34347432.

It is an arithmetic number, because the mean of its divisors is an integer number (34347432).

Almost surely, 2^68694863 is an apocalyptic number.

68694863 is a deficient number, since it is larger than the sum of its proper divisors (1).

68694863 is an equidigital number, since it uses as much as digits as its factorization.

68694863 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1492992, while the sum is 50.

The square root of 68694863 is about 8288.2364227862. The cubic root of 68694863 is about 409.5510910605.

The spelling of 68694863 in words is "sixty-eight million, six hundred ninety-four thousand, eight hundred sixty-three".