400711 has 2 divisors, whose sum is σ = 400712. Its totient is φ = 400710.

The previous prime is 400703. The next prime is 400721. The reversal of 400711 is 117004.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 400711 - 2³ = 400703 is a prime.

It is a Chen prime.

It is an Ulam number.

400711 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 400691 and 400700.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (400721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200355 + 200356.

It is an arithmetic number, because the mean of its divisors is an integer number (200356).

2⁴⁰⁰⁷¹¹ is an apocalyptic number.

400711 is a deficient number, since it is larger than the sum of its proper divisors (1).

400711 is an equidigital number, since it uses as much as digits as its factorization.

400711 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28, while the sum is 13.

The square root of 400711 is about 633.0173773286. The cubic root of 400711 is about 73.7242599055.

Adding to 400711 its reverse (117004), we get a palindrome (517715).

It can be divided in two parts, 400 and 711, that added together give a palindrome (1111).

The spelling of 400711 in words is "four hundred thousand, seven hundred eleven", and thus it is an iban number.