406258087 has 2 divisors, whose sum is σ = 406258088. Its totient is φ = 406258086.

The previous prime is 406258081. The next prime is 406258123. The reversal of 406258087 is 780852604.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 406258087 - 2³ = 406258079 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (406258081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 203129043 + 203129044.

It is an arithmetic number, because the mean of its divisors is an integer number (203129044).

Almost surely, 2^406258087 is an apocalyptic number.

406258087 is a deficient number, since it is larger than the sum of its proper divisors (1).

406258087 is an equidigital number, since it uses as much as digits as its factorization.

406258087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 107520, while the sum is 40.

The square root of 406258087 is about 20155.8449835277. The cubic root of 406258087 is about 740.6289314704.

The spelling of 406258087 in words is "four hundred six million, two hundred fifty-eight thousand, eighty-seven".