406719 has 6 divisors (see below), whose sum is σ = 587496. Its totient is φ = 271140.

The previous prime is 406717. The next prime is 406729. The reversal of 406719 is 917604.

It is not a de Polignac number, because 406719 - 2¹ = 406717 is a prime.

It is a super-2 number, since 2×406719² = 330840689922, which contains 22 as substring.

406719 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 406692 and 406701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (406717) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 22587 + ... + 22604.

It is an arithmetic number, because the mean of its divisors is an integer number (97916).

2⁴⁰⁶⁷¹⁹ is an apocalyptic number.

406719 is a deficient number, since it is larger than the sum of its proper divisors (180777).

406719 is a wasteful number, since it uses less digits than its factorization.

406719 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45197 (or 45194 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 406719 is about 637.7452469443. The cubic root of 406719 is about 74.0908914810.

The spelling of 406719 in words is "four hundred six thousand, seven hundred nineteen".