396854253289 has 4 divisors (see below), whose sum is σ = 427381503556. Its totient is φ = 366327003024.

The previous prime is 396854253287. The next prime is 396854253293. The reversal of 396854253289 is 982352458693.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 982352458693 = 884251 ⋅1110943.

It can be written as a sum of positive squares in 2 ways, for example, as 111634169689 + 285220083600 = 334117^2 + 534060^2 .

It is a cyclic number.

It is not a de Polignac number, because 396854253289 - 2¹ = 396854253287 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 396854253289.

It is not an unprimeable number, because it can be changed into a prime (396854253287) 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, 15263625114 + ... + 15263625139.

It is an arithmetic number, because the mean of its divisors is an integer number (106845375889).

Almost surely, 2^396854253289 is an apocalyptic number.

It is an amenable number.

396854253289 is a deficient number, since it is larger than the sum of its proper divisors (30527250267).

396854253289 is a wasteful number, since it uses less digits than its factorization.

396854253289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30527250266.

The product of its digits is 111974400, while the sum is 64.

The spelling of 396854253289 in words is "three hundred ninety-six billion, eight hundred fifty-four million, two hundred fifty-three thousand, two hundred eighty-nine".