400713 has 4 divisors (see below), whose sum is σ = 534288. Its totient is φ = 267140.

The previous prime is 400711. The next prime is 400721. The reversal of 400713 is 317004.

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 400713 - 2¹ = 400711 is a prime.

It is a D-number.

It is a junction number, because it is equal to n+sod(n) for n = 400692 and 400701.

It is not an unprimeable number, because it can be changed into a prime (400711) 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, 66783 + ... + 66788.

It is an arithmetic number, because the mean of its divisors is an integer number (133572).

2⁴⁰⁰⁷¹³ is an apocalyptic number.

It is an amenable number.

400713 is a deficient number, since it is larger than the sum of its proper divisors (133575).

400713 is a wasteful number, since it uses less digits than its factorization.

400713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133574.

The product of its (nonzero) digits is 84, while the sum is 15.

The square root of 400713 is about 633.0189570621. The cubic root of 400713 is about 73.7243825611.

Adding to 400713 its reverse (317004), we get a palindrome (717717).

The spelling of 400713 in words is "four hundred thousand, seven hundred thirteen".