667677323 has 2 divisors, whose sum is σ = 667677324. Its totient is φ = 667677322.

The previous prime is 667677313. The next prime is 667677341. The reversal of 667677323 is 323776766.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 667677323 - 2⁸ = 667677067 is a prime.

It is not a weakly prime, because it can be changed into another prime (667677313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 333838661 + 333838662.

It is an arithmetic number, because the mean of its divisors is an integer number (333838662).

Almost surely, 2^667677323 is an apocalyptic number.

667677323 is a deficient number, since it is larger than the sum of its proper divisors (1).

667677323 is an equidigital number, since it uses as much as digits as its factorization.

667677323 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1333584, while the sum is 47.

The square root of 667677323 is about 25839.4528386342. The cubic root of 667677323 is about 874.0216866642.

The spelling of 667677323 in words is "six hundred sixty-seven million, six hundred seventy-seven thousand, three hundred twenty-three".