67854091 has 2 divisors, whose sum is σ = 67854092. Its totient is φ = 67854090.

The previous prime is 67854079. The next prime is 67854097. The reversal of 67854091 is 19045876.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 67854091 - 2⁷ = 67853963 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (67854097) 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, 33927045 + 33927046.

It is an arithmetic number, because the mean of its divisors is an integer number (33927046).

Almost surely, 2^67854091 is an apocalyptic number.

67854091 is a deficient number, since it is larger than the sum of its proper divisors (1).

67854091 is an equidigital number, since it uses as much as digits as its factorization.

67854091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 60480, while the sum is 40.

The square root of 67854091 is about 8237.3594676935. The cubic root of 67854091 is about 407.8733647583.

The spelling of 67854091 in words is "sixty-seven million, eight hundred fifty-four thousand, ninety-one".