68583917 has 2 divisors, whose sum is σ = 68583918. Its totient is φ = 68583916.

The previous prime is 68583913. The next prime is 68583943. The reversal of 68583917 is 71938586.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 65383396 + 3200521 = 8086^2 + 1789^2 .

It is a cyclic number.

It is not a de Polignac number, because 68583917 - 2² = 68583913 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 (68583913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34291958 + 34291959.

It is an arithmetic number, because the mean of its divisors is an integer number (34291959).

Almost surely, 2^68583917 is an apocalyptic number.

It is an amenable number.

68583917 is a deficient number, since it is larger than the sum of its proper divisors (1).

68583917 is an equidigital number, since it uses as much as digits as its factorization.

68583917 is an evil number, because the sum of its binary digits is even.

The product of its digits is 362880, while the sum is 47.

The square root of 68583917 is about 8281.5407382926. The cubic root of 68583917 is about 409.3304897084.

The spelling of 68583917 in words is "sixty-eight million, five hundred eighty-three thousand, nine hundred seventeen".