667374467 has 2 divisors, whose sum is σ = 667374468. Its totient is φ = 667374466.

The previous prime is 667374451. The next prime is 667374469. The reversal of 667374467 is 764473766.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 667374467 - 2⁴ = 667374451 is a prime.

Together with 667374469, 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 (667374469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 333687233 + 333687234.

It is an arithmetic number, because the mean of its divisors is an integer number (333687234).

Almost surely, 2^667374467 is an apocalyptic number.

667374467 is a deficient number, since it is larger than the sum of its proper divisors (1).

667374467 is an equidigital number, since it uses as much as digits as its factorization.

667374467 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3556224, while the sum is 50.

The square root of 667374467 is about 25833.5918331153. The cubic root of 667374467 is about 873.8895156610.

The spelling of 667374467 in words is "six hundred sixty-seven million, three hundred seventy-four thousand, four hundred sixty-seven".