196403853 has 4 divisors (see below), whose sum is σ = 261871808. Its totient is φ = 130935900.

The previous prime is 196403827. The next prime is 196403869. The reversal of 196403853 is 358304691.

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 not a de Polignac number, because 196403853 - 2¹⁸ = 196141709 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (196403953) 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, 32733973 + ... + 32733978.

It is an arithmetic number, because the mean of its divisors is an integer number (65467952).

Almost surely, 2^196403853 is an apocalyptic number.

It is an amenable number.

196403853 is a deficient number, since it is larger than the sum of its proper divisors (65467955).

196403853 is an equidigital number, since it uses as much as digits as its factorization.

196403853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65467954.

The product of its (nonzero) digits is 77760, while the sum is 39.

The square root of 196403853 is about 14014.4158993516. The cubic root of 196403853 is about 581.2772614801.

The spelling of 196403853 in words is "one hundred ninety-six million, four hundred three thousand, eight hundred fifty-three".