406193 has 4 divisors (see below), whose sum is σ = 419328. Its totient is φ = 393060.

The previous prime is 406183. The next prime is 406207. The reversal of 406193 is 391604.

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 406193 - 2⁴ = 406177 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a zygodrome in base 7.

It is not an unprimeable number, because it can be changed into a prime (406123) 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, 6521 + ... + 6582.

It is an arithmetic number, because the mean of its divisors is an integer number (104832).

2⁴⁰⁶¹⁹³ is an apocalyptic number.

It is an amenable number.

406193 is a deficient number, since it is larger than the sum of its proper divisors (13135).

406193 is a wasteful number, since it uses less digits than its factorization.

406193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13134.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 406193 is about 637.3327231517. The cubic root of 406193 is about 74.0589377066.

Multiplying 406193 by its sum of digits (23), we get a palindrome (9342439).

Adding to 406193 its reverse (391604), we get a palindrome (797797).

The spelling of 406193 in words is "four hundred six thousand, one hundred ninety-three".