68724967 has 2 divisors, whose sum is σ = 68724968. Its totient is φ = 68724966.

The previous prime is 68724949. The next prime is 68724973. The reversal of 68724967 is 76942786.

It is a strong prime.

68724967 is a truncatable prime.

It is a cyclic number.

It is not a de Polignac number, because 68724967 - 2⁷ = 68724839 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 68724967.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68724917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34362483 + 34362484.

It is an arithmetic number, because the mean of its divisors is an integer number (34362484).

Almost surely, 2^68724967 is an apocalyptic number.

68724967 is a deficient number, since it is larger than the sum of its proper divisors (1).

68724967 is an equidigital number, since it uses as much as digits as its factorization.

68724967 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1016064, while the sum is 49.

The square root of 68724967 is about 8290.0522917531. The cubic root of 68724967 is about 409.6109078840.

The spelling of 68724967 in words is "sixty-eight million, seven hundred twenty-four thousand, nine hundred sixty-seven".