406547 has 2 divisors, whose sum is σ = 406548. Its totient is φ = 406546.

The previous prime is 406531. The next prime is 406559. The reversal of 406547 is 745604.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 406547 - 2⁴ = 406531 is a prime.

It is not a weakly prime, because it can be changed into another prime (406507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 203273 + 203274.

It is an arithmetic number, because the mean of its divisors is an integer number (203274).

2⁴⁰⁶⁵⁴⁷ is an apocalyptic number.

406547 is a deficient number, since it is larger than the sum of its proper divisors (1).

406547 is an equidigital number, since it uses as much as digits as its factorization.

406547 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 406547 is about 637.6103826005. The cubic root of 406547 is about 74.0804457513.

The spelling of 406547 in words is "four hundred six thousand, five hundred forty-seven".