406277 has 4 divisors (see below), whose sum is σ = 427680. Its totient is φ = 384876.

The previous prime is 406271. The next prime is 406309. The reversal of 406277 is 772604.

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 406277 - 2¹⁰ = 405253 is a prime.

It is a super-2 number, since 2×406277² = 330122001458, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (406271) 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, 10673 + ... + 10710.

It is an arithmetic number, because the mean of its divisors is an integer number (106920).

2⁴⁰⁶²⁷⁷ is an apocalyptic number.

It is an amenable number.

406277 is a deficient number, since it is larger than the sum of its proper divisors (21403).

406277 is a wasteful number, since it uses less digits than its factorization.

406277 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21402.

The product of its (nonzero) digits is 2352, while the sum is 26.

The square root of 406277 is about 637.3986193898. The cubic root of 406277 is about 74.0640424409.

The spelling of 406277 in words is "four hundred six thousand, two hundred seventy-seven".