405085087 has 8 divisors (see below), whose sum is σ = 443100240. Its totient is φ = 367268160.

The previous prime is 405085081. The next prime is 405085097. The reversal of 405085087 is 780580504.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 405085087 - 2¹⁹ = 404560799 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (405085081) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45262 + ... + 53467.

It is an arithmetic number, because the mean of its divisors is an integer number (55387530).

Almost surely, 2^405085087 is an apocalyptic number.

405085087 is a deficient number, since it is larger than the sum of its proper divisors (38015153).

405085087 is a wasteful number, since it uses less digits than its factorization.

405085087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99113.

The product of its (nonzero) digits is 44800, while the sum is 37.

The square root of 405085087 is about 20126.7256899874. The cubic root of 405085087 is about 739.9154316555.

The spelling of 405085087 in words is "four hundred five million, eighty-five thousand, eighty-seven".