68863967 has 2 divisors, whose sum is σ = 68863968. Its totient is φ = 68863966.

The previous prime is 68863943. The next prime is 68863973. The reversal of 68863967 is 76936886.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 68863967 - 2⁶ = 68863903 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 (68863997) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34431983 + 34431984.

It is an arithmetic number, because the mean of its divisors is an integer number (34431984).

Almost surely, 2^68863967 is an apocalyptic number.

68863967 is a deficient number, since it is larger than the sum of its proper divisors (1).

68863967 is an equidigital number, since it uses as much as digits as its factorization.

68863967 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2612736, while the sum is 53.

The square root of 68863967 is about 8298.4315988023. The cubic root of 68863967 is about 409.8868753935.

The spelling of 68863967 in words is "sixty-eight million, eight hundred sixty-three thousand, nine hundred sixty-seven".