67734971 has 2 divisors, whose sum is σ = 67734972. Its totient is φ = 67734970.

The previous prime is 67734941. The next prime is 67734973. The reversal of 67734971 is 17943776.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-67734971 is a prime.

Together with 67734973, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (67734973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33867485 + 33867486.

It is an arithmetic number, because the mean of its divisors is an integer number (33867486).

Almost surely, 2^67734971 is an apocalyptic number.

67734971 is a deficient number, since it is larger than the sum of its proper divisors (1).

67734971 is an equidigital number, since it uses as much as digits as its factorization.

67734971 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 222264, while the sum is 44.

The square root of 67734971 is about 8230.1258192084. The cubic root of 67734971 is about 407.6345467612.

The spelling of 67734971 in words is "sixty-seven million, seven hundred thirty-four thousand, nine hundred seventy-one".