68974187 has 2 divisors, whose sum is σ = 68974188. Its totient is φ = 68974186.

The previous prime is 68974181. The next prime is 68974201. The reversal of 68974187 is 78147986.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68974187 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (68974181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34487093 + 34487094.

It is an arithmetic number, because the mean of its divisors is an integer number (34487094).

Almost surely, 2^68974187 is an apocalyptic number.

68974187 is a deficient number, since it is larger than the sum of its proper divisors (1).

68974187 is an equidigital number, since it uses as much as digits as its factorization.

68974187 is an evil number, because the sum of its binary digits is even.

The product of its digits is 677376, while the sum is 50.

The square root of 68974187 is about 8305.0699575621. The cubic root of 68974187 is about 410.1054398656.

The spelling of 68974187 in words is "sixty-eight million, nine hundred seventy-four thousand, one hundred eighty-seven".