400060667 has 2 divisors, whose sum is σ = 400060668. Its totient is φ = 400060666.

The previous prime is 400060627. The next prime is 400060693. The reversal of 400060667 is 766060004.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 400060667 - 2¹⁰ = 400059643 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (400060627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200030333 + 200030334.

It is an arithmetic number, because the mean of its divisors is an integer number (200030334).

Almost surely, 2^400060667 is an apocalyptic number.

400060667 is a deficient number, since it is larger than the sum of its proper divisors (1).

400060667 is an equidigital number, since it uses as much as digits as its factorization.

400060667 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6048, while the sum is 29.

The square root of 400060667 is about 20001.5166174968. The cubic root of 400060667 is about 736.8435477015.

The spelling of 400060667 in words is "four hundred million, sixty thousand, six hundred sixty-seven".