396407 has 4 divisors (see below), whose sum is σ = 432456. Its totient is φ = 360360.

The previous prime is 396379. The next prime is 396413. The reversal of 396407 is 704693.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 704693 = 11 ⋅64063.

It is not a de Polignac number, because 396407 - 2¹⁰ = 395383 is a prime.

It is a Duffinian number.

396407 is a modest number, since divided by 407 gives 396 as remainder.

It is a self number, because there is not a number n which added to its sum of digits gives 396407.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 396407.

It is not an unprimeable number, because it can be changed into a prime (396427) 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, 18008 + ... + 18029.

It is an arithmetic number, because the mean of its divisors is an integer number (108114).

2³⁹⁶⁴⁰⁷ is an apocalyptic number.

396407 is a deficient number, since it is larger than the sum of its proper divisors (36049).

396407 is a wasteful number, since it uses less digits than its factorization.

396407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36048.

The product of its (nonzero) digits is 4536, while the sum is 29.

The square root of 396407 is about 629.6086085816. The cubic root of 396407 is about 73.4593540210.

It can be divided in two parts, 39 and 6407, that added together give a palindrome (6446).

The spelling of 396407 in words is "three hundred ninety-six thousand, four hundred seven".