409228087 has 2 divisors, whose sum is σ = 409228088. Its totient is φ = 409228086.

The previous prime is 409228081. The next prime is 409228091. The reversal of 409228087 is 780822904.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-409228087 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (409228081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 204614043 + 204614044.

It is an arithmetic number, because the mean of its divisors is an integer number (204614044).

Almost surely, 2^409228087 is an apocalyptic number.

409228087 is a deficient number, since it is larger than the sum of its proper divisors (1).

409228087 is an equidigital number, since it uses as much as digits as its factorization.

409228087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64512, while the sum is 40.

The square root of 409228087 is about 20229.3867183363. The cubic root of 409228087 is about 742.4293709341.

The spelling of 409228087 in words is "four hundred nine million, two hundred twenty-eight thousand, eighty-seven".