624667 has 2 divisors, whose sum is σ = 624668. Its totient is φ = 624666.

The previous prime is 624649. The next prime is 624683. The reversal of 624667 is 766426.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 624667 - 2⁷ = 624539 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (624607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 312333 + 312334.

It is an arithmetic number, because the mean of its divisors is an integer number (312334).

2⁶²⁴⁶⁶⁷ is an apocalyptic number.

624667 is a deficient number, since it is larger than the sum of its proper divisors (1).

624667 is an equidigital number, since it uses as much as digits as its factorization.

624667 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12096, while the sum is 31.

The square root of 624667 is about 790.3587792895. The cubic root of 624667 is about 85.4836100498.

The spelling of 624667 in words is "six hundred twenty-four thousand, six hundred sixty-seven".