196894877 has 4 divisors (see below), whose sum is σ = 197982876. Its totient is φ = 195806880.

The previous prime is 196894849. The next prime is 196894879. The reversal of 196894877 is 778498691.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 778498691 = 31 ⋅25112861.

It can be written as a sum of positive squares in 2 ways, for example, as 586756 + 196308121 = 766^2 + 14011^2 .

It is a cyclic number.

It is not a de Polignac number, because 196894877 - 2²⁴ = 180117661 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 (196894879) 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, 543728 + ... + 544089.

It is an arithmetic number, because the mean of its divisors is an integer number (49495719).

Almost surely, 2^196894877 is an apocalyptic number.

It is an amenable number.

196894877 is a deficient number, since it is larger than the sum of its proper divisors (1087999).

196894877 is a wasteful number, since it uses less digits than its factorization.

196894877 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1087998.

The product of its digits is 6096384, while the sum is 59.

The square root of 196894877 is about 14031.9234960856. The cubic root of 196894877 is about 581.7612702434.

The spelling of 196894877 in words is "one hundred ninety-six million, eight hundred ninety-four thousand, eight hundred seventy-seven".