667488023 has 2 divisors, whose sum is σ = 667488024. Its totient is φ = 667488022.

The previous prime is 667488013. The next prime is 667488061. The reversal of 667488023 is 320884766.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 667488023 - 2⁶ = 667487959 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (667488013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 333744011 + 333744012.

It is an arithmetic number, because the mean of its divisors is an integer number (333744012).

Almost surely, 2^667488023 is an apocalyptic number.

667488023 is a deficient number, since it is larger than the sum of its proper divisors (1).

667488023 is an equidigital number, since it uses as much as digits as its factorization.

667488023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 387072, while the sum is 44.

The square root of 667488023 is about 25835.7895757029. The cubic root of 667488023 is about 873.9390779257.

The spelling of 667488023 in words is "six hundred sixty-seven million, four hundred eighty-eight thousand, twenty-three".