667324039 has 2 divisors, whose sum is σ = 667324040. Its totient is φ = 667324038.

The previous prime is 667324033. The next prime is 667324057. The reversal of 667324039 is 930423766.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 667324039 - 2¹⁹ = 666799751 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 667323992 and 667324010.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (667324033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 333662019 + 333662020.

It is an arithmetic number, because the mean of its divisors is an integer number (333662020).

Almost surely, 2^667324039 is an apocalyptic number.

667324039 is a deficient number, since it is larger than the sum of its proper divisors (1).

667324039 is an equidigital number, since it uses as much as digits as its factorization.

667324039 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 163296, while the sum is 40.

The square root of 667324039 is about 25832.6157986372. The cubic root of 667324039 is about 873.8675042253.

The spelling of 667324039 in words is "six hundred sixty-seven million, three hundred twenty-four thousand, thirty-nine".