396498385 has 4 divisors (see below), whose sum is σ = 475798068. Its totient is φ = 317198704.

The previous prime is 396498383. The next prime is 396498407. The reversal of 396498385 is 583894693.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 583894693 = 53 ⋅11016881.

It can be written as a sum of positive squares in 2 ways, for example, as 74080449 + 322417936 = 8607^2 + 17956^2 .

It is a cyclic number.

It is not a de Polignac number, because 396498385 - 2¹ = 396498383 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (396498383) 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, 39649834 + ... + 39649843.

It is an arithmetic number, because the mean of its divisors is an integer number (118949517).

Almost surely, 2^396498385 is an apocalyptic number.

It is an amenable number.

396498385 is a deficient number, since it is larger than the sum of its proper divisors (79299683).

396498385 is an equidigital number, since it uses as much as digits as its factorization.

396498385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79299682.

The product of its digits is 5598720, while the sum is 55.

The square root of 396498385 is about 19912.2671988902. The cubic root of 396498385 is about 734.6499852886.

The spelling of 396498385 in words is "three hundred ninety-six million, four hundred ninety-eight thousand, three hundred eighty-five".