406080287 has 4 divisors (see below), whose sum is σ = 406255656. Its totient is φ = 405904920.

The previous prime is 406080247. The next prime is 406080289. The reversal of 406080287 is 782080604.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 406080287 - 2¹⁰ = 406079263 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (406080289) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 84164 + ... + 88857.

It is an arithmetic number, because the mean of its divisors is an integer number (101563914).

Almost surely, 2^406080287 is an apocalyptic number.

406080287 is a deficient number, since it is larger than the sum of its proper divisors (175369).

406080287 is a wasteful number, since it uses less digits than its factorization.

406080287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175368.

The product of its (nonzero) digits is 21504, while the sum is 35.

The square root of 406080287 is about 20151.4338695786. The cubic root of 406080287 is about 740.5208695893.

The spelling of 406080287 in words is "four hundred six million, eighty thousand, two hundred eighty-seven".