68699087 has 2 divisors, whose sum is σ = 68699088. Its totient is φ = 68699086.

The previous prime is 68699083. The next prime is 68699123. The reversal of 68699087 is 78099686.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 68699087 - 2² = 68699083 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68699083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34349543 + 34349544.

It is an arithmetic number, because the mean of its divisors is an integer number (34349544).

Almost surely, 2^68699087 is an apocalyptic number.

68699087 is a deficient number, since it is larger than the sum of its proper divisors (1).

68699087 is an equidigital number, since it uses as much as digits as its factorization.

68699087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1306368, while the sum is 53.

The square root of 68699087 is about 8288.4912378551. The cubic root of 68699087 is about 409.5594852270.

The spelling of 68699087 in words is "sixty-eight million, six hundred ninety-nine thousand, eighty-seven".