196864677 has 6 divisors (see below), whose sum is σ = 284360102. Its totient is φ = 131243112.

The previous prime is 196864609. The next prime is 196864697. The reversal of 196864677 is 776468691.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 132848676 + 64016001 = 11526^2 + 8001^2 .

It is not a de Polignac number, because 196864677 - 2¹⁵ = 196831909 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 (196864697) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10936918 + ... + 10936935.

Almost surely, 2^196864677 is an apocalyptic number.

It is an amenable number.

196864677 is a deficient number, since it is larger than the sum of its proper divisors (87495425).

196864677 is a wasteful number, since it uses less digits than its factorization.

196864677 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21873859 (or 21873856 counting only the distinct ones).

The product of its digits is 3048192, while the sum is 54.

The square root of 196864677 is about 14030.8473372067. The cubic root of 196864677 is about 581.7315249482.

The spelling of 196864677 in words is "one hundred ninety-six million, eight hundred sixty-four thousand, six hundred seventy-seven".