406677 has 4 divisors (see below), whose sum is σ = 542240. Its totient is φ = 271116.

The previous prime is 406673. The next prime is 406697. The reversal of 406677 is 776604.

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 not a de Polignac number, because 406677 - 2² = 406673 is a prime.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 406677.

It is not an unprimeable number, because it can be changed into a prime (406673) 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, 67777 + ... + 67782.

It is an arithmetic number, because the mean of its divisors is an integer number (135560).

2⁴⁰⁶⁶⁷⁷ is an apocalyptic number.

It is an amenable number.

406677 is a deficient number, since it is larger than the sum of its proper divisors (135563).

406677 is a wasteful number, since it uses less digits than its factorization.

406677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135562.

The product of its (nonzero) digits is 7056, while the sum is 30.

The square root of 406677 is about 637.7123175853. The cubic root of 406677 is about 74.0883410513.

The spelling of 406677 in words is "four hundred six thousand, six hundred seventy-seven".