196894477 has 8 divisors (see below), whose sum is σ = 213918264. Its totient is φ = 180139008.

The previous prime is 196894471. The next prime is 196894531. The reversal of 196894477 is 774498691.

It can be written as a sum of positive squares in 4 ways, for example, as 1705636 + 195188841 = 1306^2 + 13971^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 196894477 - 2¹⁹ = 196370189 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 (196894471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65548 + ... + 68485.

It is an arithmetic number, because the mean of its divisors is an integer number (26739783).

Almost surely, 2^196894477 is an apocalyptic number.

It is an amenable number.

196894477 is a deficient number, since it is larger than the sum of its proper divisors (17023787).

196894477 is a wasteful number, since it uses less digits than its factorization.

196894477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134159.

The product of its digits is 3048192, while the sum is 55.

The square root of 196894477 is about 14031.9092428650. The cubic root of 196894477 is about 581.7608762858.

The spelling of 196894477 in words is "one hundred ninety-six million, eight hundred ninety-four thousand, four hundred seventy-seven".