406667567 has 2 divisors, whose sum is σ = 406667568. Its totient is φ = 406667566.

The previous prime is 406667537. The next prime is 406667617. The reversal of 406667567 is 765766604.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 406667567 - 2¹⁴ = 406651183 is a prime.

It is a super-4 number, since 4×406667567⁴ (a number of 36 digits) contains 4444 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (406667537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 203333783 + 203333784.

It is an arithmetic number, because the mean of its divisors is an integer number (203333784).

Almost surely, 2^406667567 is an apocalyptic number.

406667567 is a deficient number, since it is larger than the sum of its proper divisors (1).

406667567 is an equidigital number, since it uses as much as digits as its factorization.

406667567 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1270080, while the sum is 47.

The square root of 406667567 is about 20166.0002727363. Note that the first 3 decimals coincide. The cubic root of 406667567 is about 740.8776821283.

The spelling of 406667567 in words is "four hundred six million, six hundred sixty-seven thousand, five hundred sixty-seven".