396461 has 4 divisors (see below), whose sum is σ = 426972. Its totient is φ = 365952.

The previous prime is 396449. The next prime is 396479. The reversal of 396461 is 164693.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 164693 = 157 ⋅1049.

It can be written as a sum of positive squares in 2 ways, for example, as 175561 + 220900 = 419^2 + 470^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-396461 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (396061) 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, 15236 + ... + 15261.

It is an arithmetic number, because the mean of its divisors is an integer number (106743).

2³⁹⁶⁴⁶¹ is an apocalyptic number.

It is an amenable number.

396461 is a deficient number, since it is larger than the sum of its proper divisors (30511).

396461 is a wasteful number, since it uses less digits than its factorization.

396461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30510.

The product of its digits is 3888, while the sum is 29.

The square root of 396461 is about 629.6514909059. The cubic root of 396461 is about 73.4626895028.

The spelling of 396461 in words is "three hundred ninety-six thousand, four hundred sixty-one".