67690067 has 2 divisors, whose sum is σ = 67690068. Its totient is φ = 67690066.

The previous prime is 67690061. The next prime is 67690087. The reversal of 67690067 is 76009676.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 67690067 - 2¹⁸ = 67427923 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (67690061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33845033 + 33845034.

It is an arithmetic number, because the mean of its divisors is an integer number (33845034).

Almost surely, 2^67690067 is an apocalyptic number.

67690067 is a deficient number, since it is larger than the sum of its proper divisors (1).

67690067 is an equidigital number, since it uses as much as digits as its factorization.

67690067 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 95256, while the sum is 41.

The square root of 67690067 is about 8227.3973405932. The cubic root of 67690067 is about 407.5444482109.

The spelling of 67690067 in words is "sixty-seven million, six hundred ninety thousand, sixty-seven".