406655855 has 8 divisors (see below), whose sum is σ = 490910112. Its totient is φ = 323375968.

The previous prime is 406655849. The next prime is 406655857. The reversal of 406655855 is 558556604.

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 406655855 - 2⁴ = 406655839 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 (406655857) 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, 242672 + ... + 244341.

It is an arithmetic number, because the mean of its divisors is an integer number (61363764).

Almost surely, 2^406655855 is an apocalyptic number.

406655855 is a deficient number, since it is larger than the sum of its proper divisors (84254257).

406655855 is a wasteful number, since it uses less digits than its factorization.

406655855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 487185.

The product of its (nonzero) digits is 720000, while the sum is 44.

The square root of 406655855 is about 20165.7098808844. The cubic root of 406655855 is about 740.8705696500.

The spelling of 406655855 in words is "four hundred six million, six hundred fifty-five thousand, eight hundred fifty-five".