406477 has 4 divisors (see below), whose sum is σ = 408096. Its totient is φ = 404860.

The previous prime is 406447. The next prime is 406481. The reversal of 406477 is 774604.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 406477 - 2⁷ = 406349 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 (406447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 343 + ... + 964.

It is an arithmetic number, because the mean of its divisors is an integer number (102024).

2⁴⁰⁶⁴⁷⁷ is an apocalyptic number.

It is an amenable number.

406477 is a deficient number, since it is larger than the sum of its proper divisors (1619).

406477 is a wasteful number, since it uses less digits than its factorization.

406477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1618.

The product of its (nonzero) digits is 4704, while the sum is 28.

The square root of 406477 is about 637.5554877813. Note that the first 3 decimals coincide. The cubic root of 406477 is about 74.0761937387.

The spelling of 406477 in words is "four hundred six thousand, four hundred seventy-seven".